- added import individual sheets;

- fixed bugs reated to init of univerjs;

src/assets/scss/components/formBuilder.scss

@@ -204,14 +204,14 @@
 
 .formElementSettings__fieldDescription, .formElementSettings__fieldVarsList {
   padding: 15px;
-  background-color: #ffe0c5;
+  background-color: #fdf1e5;
   border: 1px solid #e6a973;
   
-  p {
+  p, li {
     margin: 0;
     color: #c68e5e;
     font-size: 15px;
-    line-height: 1.5;
+    line-height: 1.8;
   }
 
   code {

src/components/FormField/components/Spreadsheet/index.js

@@ -1,11 +1,28 @@
 import React, { useEffect, useRef } from 'react';
+import { classNames } from 'primereact/utils';
 import { createUniver, LocaleType, mergeLocales } from '@univerjs/presets';
 import { UniverSheetsCorePreset } from '@univerjs/preset-sheets-core';
 import UniverPresetSheetsCoreEnUS from '@univerjs/preset-sheets-core/locales/en-US';
 import '@univerjs/preset-sheets-core/lib/index.css';
+import { __ } from '@wordpress/i18n';
+
+// tools
+import { xlsxToWorkbookData } from '../../../../pages/BandoEdit/components/BandoEditFormStep3Excel/xlsxToWorkbookData';
 
 const TAG_RE = /^\{\{gepafin_field:[^|]+\|[^}]+}}$/;
 
+const BLOCKED_COMMANDS = new Set([
+    'sheet.command.set-range-values',
+    'sheet.command.clear-selection-content',
+    'sheet.command.clear-selection-all',
+    'sheet.command.delete-range',
+    'sheet.command.insert-range',
+    'sheet.command.set-range-format',
+    'sheet.command.insert-sheet',
+    'sheet.command.delete-sheet',
+    'sheet.command.rename-sheet',
+]);
+
 const buildTagMap = (workbookData) => {
     const map = {};
     if (!workbookData?.sheets) return map;
@@ -36,17 +53,33 @@ const parseWorkbook = (val) => {
     return null;
 };
 
-const Spreadsheet = ({ fieldName, defaultValue, setDataFn, template, register, config = {} }) => {
+const Spreadsheet = ({ fieldName, label, errors = {}, defaultValue, setDataFn, template, register, config = {} }) => {
     const containerRef = useRef(null);
     const univerRef = useRef(null);
     const univerAPIRef = useRef(null);
     const saveTimerRef = useRef(null);
     const isRestoringRef = useRef(false);
     const tagCellMapRef = useRef({});
+    const reinitializeRef = useRef(null);
+    const fileInputRef = useRef(null);
+    const addSheetsFileInputRef = useRef(null);
 
     useEffect(() => {
         if (!containerRef.current) return;
 
+        const templateData = parseWorkbook(template);
+        const gepafin = templateData?.gepafin ?? {};
+        const editableSet = new Set(gepafin.editableCells ?? []);
+        const inputOnly = editableSet.size > 0;
+        const validationCellKeys = new Set((gepafin.validationCells ?? []).map(vc => vc.key ?? vc));
+
+        const doInit = (workbookData) => {
+            if (univerRef.current) {
+                univerRef.current.dispose();
+                univerRef.current = null;
+                univerAPIRef.current = null;
+            }
+
             const { univer, univerAPI } = createUniver({
                 locale: LocaleType.EN_US,
                 locales: {
@@ -62,9 +95,25 @@ const Spreadsheet = ({ fieldName, defaultValue, setDataFn, template, register, c
             univerRef.current = univer;
             univerAPIRef.current = univerAPI;
 
-        const initialData = parseWorkbook(defaultValue) || parseWorkbook(template) || { name: 'Sheet' };
+            tagCellMapRef.current = buildTagMap(workbookData);
-        tagCellMapRef.current = buildTagMap(initialData);
+            univerAPI.createWorkbook(workbookData);
-        univerAPI.createWorkbook(initialData);
+
+            // Apply visual markers for editable and validation cells in input-only mode
+            if (inputOnly && (editableSet.size > 0 || validationCellKeys.size > 0)) {
+                setTimeout(() => {
+                    const wb = univerAPIRef.current?.getActiveWorkbook();
+                    const sheet = wb?.getActiveSheet();
+                    if (!sheet) return;
+                    editableSet.forEach((key) => {
+                        const [r, c] = key.split(':').map(Number);
+                        sheet.getRange(r, c, 1, 1).setBackground('#dcfce7');
+                    });
+                    validationCellKeys.forEach((key) => {
+                        const [r, c] = key.split(':').map(Number);
+                        sheet.getRange(r, c, 1, 1).setBackground('#fef3c7');
+                    });
+                }, 300);
+            }
 
             const restoreTagCells = () => {
                 if (isRestoringRef.current) return;
@@ -97,7 +146,20 @@ const Spreadsheet = ({ fieldName, defaultValue, setDataFn, template, register, c
             };
 
             let restoreTimer;
-        univerAPI.addEvent(univerAPI.Event.BeforeCommandExecute, () => {
+            univerAPI.addEvent(univerAPI.Event.BeforeCommandExecute, (event) => {
+                // Input-only mode: block write commands on non-editable cells
+                if (inputOnly && BLOCKED_COMMANDS.has(event.id)) {
+                    const sheet = univerAPIRef.current?.getActiveWorkbook()?.getActiveSheet();
+                    const range = sheet?.getActiveRange();
+                    if (range) {
+                        const key = `${range.getRow()}:${range.getColumn()}`;
+                        if (!editableSet.has(key)) {
+                            event.cancel = true;
+                            return;
+                        }
+                    }
+                }
+
                 clearTimeout(saveTimerRef.current);
                 saveTimerRef.current = setTimeout(() => {
                     const wb = univerAPIRef.current?.getActiveWorkbook();
@@ -108,10 +170,14 @@ const Spreadsheet = ({ fieldName, defaultValue, setDataFn, template, register, c
                 clearTimeout(restoreTimer);
                 restoreTimer = setTimeout(restoreTagCells, 80);
             });
+        };
+
+        const initialData = parseWorkbook(defaultValue) || templateData || { name: 'Sheet' };
+        doInit(initialData);
+        reinitializeRef.current = doInit;
 
         return () => {
             clearTimeout(saveTimerRef.current);
-            clearTimeout(restoreTimer);
             if (univerRef.current) {
                 univerRef.current.dispose();
                 univerRef.current = null;
@@ -132,11 +198,111 @@ const Spreadsheet = ({ fieldName, defaultValue, setDataFn, template, register, c
         register(fieldName, config);
     }, []); // eslint-disable-line react-hooks/exhaustive-deps
 
+    const handleImport = (e) => {
+        const file = e.target.files?.[0];
+        if (!file) return;
+        const reader = new FileReader();
+        reader.onload = (ev) => {
+            const data = xlsxToWorkbookData(ev.target.result);
+            reinitializeRef.current?.(data);
+            setTimeout(() => {
+                const wb = univerAPIRef.current?.getActiveWorkbook();
+                if (wb) setDataFn(fieldName, wb.save(), { shouldValidate: true });
+            }, 400);
+        };
+        reader.readAsArrayBuffer(file);
+        e.target.value = '';
+    };
+
+    const handleImportAsSheets = (e) => {
+        const file = e.target.files?.[0];
+        if (!file) return;
+        const reader = new FileReader();
+        reader.onload = (ev) => {
+            const imported = xlsxToWorkbookData(ev.target.result);
+            const wb = univerAPIRef.current?.getActiveWorkbook();
+            if (!wb) return;
+            const current = wb.save();
+            const existingIds = new Set(current.sheetOrder || []);
+            const mergedSheets = { ...(current.sheets || {}) };
+            const mergedOrder = [...(current.sheetOrder || [])];
+            (imported.sheetOrder || []).forEach((importedId) => {
+                let newId = importedId;
+                let counter = 0;
+                while (existingIds.has(newId)) {
+                    counter++;
+                    newId = `${importedId}_${counter}`;
+                }
+                existingIds.add(newId);
+                mergedSheets[newId] = { ...imported.sheets[importedId], id: newId };
+                mergedOrder.push(newId);
+            });
+            const merged = { ...current, sheets: mergedSheets, sheetOrder: mergedOrder };
+            reinitializeRef.current?.(merged);
+            setTimeout(() => {
+                const wbAfter = univerAPIRef.current?.getActiveWorkbook();
+                if (wbAfter) setDataFn(fieldName, wbAfter.save(), { shouldValidate: true });
+            }, 400);
+        };
+        reader.readAsArrayBuffer(file);
+        e.target.value = '';
+    };
+
+    const templateData = parseWorkbook(template);
+    const inputOnly = (templateData?.gepafin?.editableCells?.length ?? 0) > 0;
+
     return (
+        <>
+            {label
+                ? <label htmlFor={fieldName} className={classNames({ 'p-error': errors[fieldName] })}>
+                    {label}{config.required || config.isRequired ?
+                    <span className="appForm__field--required">*</span> : null}
+                </label>
+                : null}
+            {inputOnly && (
+                <div className="appPageSection__message warning">
+                    <span>
+                        {__('Modalità inserimento dati — modifica solo le celle evidenziate in verde', 'gepafin')}
+                    </span>
+                </div>
+            )}
+            {!inputOnly && (
+                <div style={{ marginBottom: '8px', display: 'flex', gap: '8px' }}>
+                    <input
+                        ref={fileInputRef}
+                        type="file"
+                        accept=".xlsx,.xls,.csv,.ods"
+                        style={{ display: 'none' }}
+                        onChange={handleImport}
+                    />
+                    <input
+                        ref={addSheetsFileInputRef}
+                        type="file"
+                        accept=".xlsx,.xls,.csv,.ods"
+                        style={{ display: 'none' }}
+                        onChange={handleImportAsSheets}
+                    />
+                    <button
+                        type="button"
+                        className="p-button p-button-outlined p-button-sm"
+                        onClick={() => fileInputRef.current?.click()}
+                    >
+                        {__('Importa foglio', 'gepafin')}
+                    </button>
+                    <button
+                        type="button"
+                        className="p-button p-button-outlined p-button-sm"
+                        onClick={() => addSheetsFileInputRef.current?.click()}
+                    >
+                        {__('Aggiungi fogli', 'gepafin')}
+                    </button>
+                </div>
+            )}
             <div
                 ref={containerRef}
                 style={{ width: '100%', height: '500px' }}
             />
+        </>
     );
 };
 

src/helpers/validators.js

@@ -66,6 +66,28 @@ export const maxChecks = (v, num) => {
     return is(Array, v) ? v.length <= parseInt(num) : false;
 }
 
+export const createSpreadsheetValidator = (gepafin) => (workbookValue) => {
+    if (!gepafin || !workbookValue?.sheets) return true;
+    const sheetId = workbookValue.sheetOrder?.[0];
+    const sheet = sheetId
+        ? workbookValue.sheets[sheetId]
+        : Object.values(workbookValue.sheets)[0];
+    const cellData = sheet?.cellData ?? {};
+
+    const getCellValue = (key) => {
+        const [r, c] = key.split(':');
+        return cellData[r]?.[c]?.v;
+    };
+
+    for (const { key, errorMessage } of (gepafin.validationCells ?? [])) {
+        const v = getCellValue(key);
+        if (v === undefined || v === null || v === 0 || v === false || v === 'FALSE' || v === '') {
+            return errorMessage || 'Validazione foglio di calcolo fallita';
+        }
+    }
+    return true;
+};
+
 export const nonEmptyTables = (v = [], tableCfg = []) => {
     const colsCfg = pathOr([], ['stateFieldData'], tableCfg);
     const nonPredefinedCells = colsCfg

src/pages/BandoApplication/index.js

@@ -25,7 +25,7 @@ import {
     isEmail,
     isEmailPEC,
     isUrl,
-    isMarcaDaBollo, minChecks, maxChecks, nonEmptyTables
+    isMarcaDaBollo, minChecks, maxChecks, nonEmptyTables, createSpreadsheetValidator
 } from '../../helpers/validators';
 import renderHtmlContent from '../../helpers/renderHtmlContent';
 import set404FromErrorResponse from '../../helpers/set404FromErrorResponse';
@@ -761,6 +761,14 @@ const BandoApplication = () => {
                                 return acc;
                             }, {});
 
+                            if (o.name === 'spreadsheet') {
+                                const gepafin = template?.value?.gepafin;
+                                if (gepafin?.validationCells?.length) {
+                                    if (!validations.validate) validations.validate = {};
+                                    validations.validate.spreadsheetInputValid = createSpreadsheetValidator(gepafin);
+                                }
+                            }
+
                             /*if (o.name === 'fileselect') {
                                 console.log('options::', options)
                             }*/

src/pages/BandoEdit/components/BandoEditFormStep3/index.js

@@ -95,7 +95,6 @@ const BandoEditFormStep3 = forwardRef(function () {
     const getFormsCallback = (resp) => {
         if (resp.status === 'SUCCESS') {
             const EXCLUDED_TYPES = new Set(['fileupload', 'fileselect', 'spreadsheet']);
-            console.log('resp.data', resp.data)
             const raw = (resp.data ?? []).flatMap(form =>
                 (form.content ?? [])
                     .filter(f => !EXCLUDED_TYPES.has(f.name))
@@ -110,7 +109,6 @@ const BandoEditFormStep3 = forwardRef(function () {
                 if (!byLabel.has(f.label)) byLabel.set(f.label, { label: f.label, ids: [], placeholder: f.placeholder });
                 byLabel.get(f.label).ids.push(f.id);
             });
-            console.log('byLabel', Array.from(byLabel.values()))
             storeSet('callFormFields', Array.from(byLabel.values()));
         }
     }

src/pages/BandoFormsEdit/components/BuilderElementSettings/components/ElementSetting/index.js

@@ -26,7 +26,7 @@ import getTokens from '../../../../../../helpers/getTokens';
 const ElementSettingSpreadsheet = React.lazy(() => import('../ElementSettingSpreadsheet'));
 
 
-const ElementSetting = ({ setting, changeFn, updateDataFn, bandoStatus }) => {
+const ElementSetting = ({ setting, changeFn, updateDataFn, bandoStatus, context }) => {
     const [existingVars, setExistingVars] = useState([]);
     const documentCategories = useStoreValue('documentCategories');
 
@@ -163,6 +163,7 @@ const ElementSetting = ({ setting, changeFn, updateDataFn, bandoStatus }) => {
                 <ElementSettingSpreadsheet
                     value={setting.value}
                     name={setting.name}
+                    context={context}
                     setDataFn={updateDataFn}/>
             </Suspense>;
         } else if (setting.name === 'formula') {

src/pages/BandoFormsEdit/components/BuilderElementSettings/components/ElementSettingSpreadsheet/index.js

@@ -14,7 +14,7 @@ import { xlsxToWorkbookData } from '../../../../../BandoEdit/components/BandoEdi
 
 const TAG_RE = /^\{\{gepafin_field:([^|]+)\|([^}]+)}}$/;
 
-const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
+const ElementSettingSpreadsheet = ({ value, name, setDataFn, context }) => {
     const callFormFields = useStoreValue('callFormFields');
     const [tagTooltip, setTagTooltip] = useState(null);
     const containerRef = useRef(null);
@@ -27,6 +27,10 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
     const taggedCellsRef = useRef(new Set());
     const saveTimerRef = useRef(null);
     const setDataFnRef = useRef(setDataFn);
+    const gepafinMetaRef = useRef({ inputOnlyMode: false, editableCells: [], validationCells: [] });
+    const contextRef = useRef(context);
+    const addSheetsFileInputRef = useRef(null);
+    const [inputOnlyActive, setInputOnlyActive] = useState(false);
 
     useEffect(() => { setDataFnRef.current = setDataFn; }, [setDataFn]);
 
@@ -43,6 +47,70 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
         range.setBackground('#dbeafe');
     };
 
+    const getActiveCellKey = () => {
+        const api = univerAPIRef.current;
+        if (!api) return null;
+        const range = api.getActiveWorkbook()?.getActiveSheet()?.getActiveRange();
+        if (!range) return null;
+        return `${range.getRow()}:${range.getColumn()}`;
+    };
+
+    const saveWithMeta = useCallback(() => {
+        const wb = univerAPIRef.current?.getActiveWorkbook();
+        if (wb) {
+            const raw = wb.save();
+            const meta = gepafinMetaRef.current;
+            // inputOnlyMode is derived: active whenever any editable cells are defined
+            setDataFnRef.current(name, {
+                ...raw,
+                gepafin: { ...meta, inputOnlyMode: meta.editableCells.length > 0 }
+            });
+        }
+    }, [name]);
+
+    const toggleEditableCell = useCallback(() => {
+        const key = getActiveCellKey();
+        if (!key) return;
+        const meta = gepafinMetaRef.current;
+        const api = univerAPIRef.current;
+        const sheet = api?.getActiveWorkbook()?.getActiveSheet();
+        const [r, c] = key.split(':').map(Number);
+
+        if (meta.editableCells.includes(key)) {
+            meta.editableCells = meta.editableCells.filter(k => k !== key);
+            sheet?.getRange(r, c, 1, 1).setBackground('');
+        } else {
+            meta.editableCells = [...meta.editableCells, key];
+            sheet?.getRange(r, c, 1, 1).setBackground('#dcfce7');
+        }
+        setInputOnlyActive(meta.editableCells.length > 0);
+        saveWithMeta();
+    }, [saveWithMeta]);
+
+    const toggleValidationCell = useCallback(() => {
+        const key = getActiveCellKey();
+        if (!key) return;
+        const meta = gepafinMetaRef.current;
+        const api = univerAPIRef.current;
+        const sheet = api?.getActiveWorkbook()?.getActiveSheet();
+        const [r, c] = key.split(':').map(Number);
+
+        const existing = meta.validationCells.find(vc => (vc.key ?? vc) === key);
+        if (existing) {
+            meta.validationCells = meta.validationCells.filter(vc => (vc.key ?? vc) !== key);
+            sheet?.getRange(r, c, 1, 1).setBackground('');
+        } else {
+            // eslint-disable-next-line no-alert
+            const errorMessage = window.prompt(
+                __('Messaggio di errore di validazione (lascia vuoto per il default):', 'gepafin'),
+                ''
+            ) ?? '';
+            meta.validationCells = [...meta.validationCells, { key, errorMessage: errorMessage || 'Validazione foglio di calcolo fallita' }];
+            sheet?.getRange(r, c, 1, 1).setBackground('#fef3c7');
+        }
+        saveWithMeta();
+    }, [saveWithMeta]);
+
     const initializeUniver = useCallback((workbookData) => {
         if (univerRef.current) {
             univerRef.current.dispose();
@@ -52,6 +120,12 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
 
         if (!containerRef.current) return;
 
+        // Initialise gepafin metadata from workbook
+        gepafinMetaRef.current = workbookData?.gepafin
+            ? { inputOnlyMode: false, editableCells: [], validationCells: [], ...workbookData.gepafin }
+            : { inputOnlyMode: false, editableCells: [], validationCells: [] };
+        setInputOnlyActive(gepafinMetaRef.current.editableCells.length > 0);
+
         const { univer, univerAPI } = createUniver({
             locale: LocaleType.EN_US,
             locales: {
@@ -84,6 +158,23 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
         }
         taggedCellsRef.current = initialTagged;
 
+        // Re-apply gepafin cell background markers after a short delay (Univer needs to settle)
+        setTimeout(() => {
+            const wb = univerAPIRef.current?.getActiveWorkbook();
+            const sheet = wb?.getActiveSheet();
+            if (!sheet) return;
+            const meta = gepafinMetaRef.current;
+            meta.editableCells.forEach((key) => {
+                const [r, c] = key.split(':').map(Number);
+                sheet.getRange(r, c, 1, 1).setBackground('#dcfce7');
+            });
+            meta.validationCells.forEach((vc) => {
+                const key = vc.key ?? vc;
+                const [r, c] = key.split(':').map(Number);
+                sheet.getRange(r, c, 1, 1).setBackground('#fef3c7');
+            });
+        }, 300);
+
         // Restore tag cells whose display value was overwritten by raw tag on blur;
         // also clear background for cells whose tag formula was removed.
         const restoreTagCells = () => {
@@ -152,21 +243,23 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
 
         let restoreTimer;
 
-        // Disable adding new sheets; auto-save on every command; schedule tag restoration
+        // Auto-save on every command; schedule tag restoration
         univerAPI.addEvent(univerAPI.Event.BeforeCommandExecute, (event) => {
-            if (event.id === 'sheet.command.insert-sheet') {
-                event.cancel = true;
-            }
             clearTimeout(saveTimerRef.current);
             saveTimerRef.current = setTimeout(() => {
                 const wb = univerAPIRef.current?.getActiveWorkbook();
-                if (wb) setDataFnRef.current(name, wb.save());
+                if (wb) {
+                    const raw = wb.save();
+                    const m = gepafinMetaRef.current;
+                    setDataFnRef.current(name, { ...raw, gepafin: { ...m, inputOnlyMode: m.editableCells.length > 0 } });
+                }
             }, 300);
             clearTimeout(restoreTimer);
             restoreTimer = setTimeout(restoreTagCells, 80);
         });
 
-        // Context menu: "Inserisci variabile GEPAFIN"
+        // Context menu: "Inserisci variabile GEPAFIN" — only for evaluation form builder (context="call")
+        if (contextRef.current === 'call') {
             const fields = formFieldsRef.current;
             if (fields.length > 0) {
                 const submenu = univerAPI.createSubmenu({
@@ -195,6 +288,22 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
 
                 submenu.appendTo(['contextMenu.mainArea', 'contextMenu.others']);
             }
+        }
+
+        // Context menu: input-only mode management — only for regular form builder (context="application")
+        if (contextRef.current === 'application') {
+            univerAPI.createMenu({
+                id: 'gepafin-toggle-editable-cell',
+                title: 'Modalità inserimento: segna/rimuovi cella modificabile',
+                action: toggleEditableCell,
+            }).appendTo(['contextMenu.mainArea', 'contextMenu.others']);
+
+            univerAPI.createMenu({
+                id: 'gepafin-toggle-validation-cell',
+                title: 'Modalità inserimento: segna/rimuovi cella di validazione',
+                action: toggleValidationCell,
+            }).appendTo(['contextMenu.mainArea', 'contextMenu.others']);
+        }
 
         // Tooltip on hover over tagged cells — read formula field to detect tag
         univerAPI.addEvent(univerAPI.Event.CellHover, (params) => {
@@ -213,7 +322,7 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
             }
         });
 
-    }, []); // refs are stable
+    }, [toggleEditableCell, toggleValidationCell]); // refs are stable
 
     // Keep formFieldsRef in sync with store value; rebuild Univer (and its context menu)
     // once fields arrive, because the menu is constructed at init time from formFieldsRef.current.
@@ -222,7 +331,11 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
         formFieldsRef.current = callFormFields;
         if (callFormFields.length > 0 && univerAPIRef.current) {
             const currentWorkbook = univerAPIRef.current.getActiveWorkbook()?.save() ?? null;
-            initializeUniver(currentWorkbook);
+            // Preserve gepafin metadata across reinit
+            const withMeta = currentWorkbook
+                ? { ...currentWorkbook, gepafin: gepafinMetaRef.current }
+                : null;
+            initializeUniver(withMeta);
         }
     }, [callFormFields, initializeUniver]);
 
@@ -242,8 +355,6 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
     }, []); // run once on mount
 
     // Flush workbook data to parent immediately when the user clicks outside the spreadsheet.
-    // This runs in the capture phase — before the clicked element's own handler — so the
-    // parent's store is up to date by the time any outer "Salva" button handler reads it.
     useEffect(() => {
         const container = containerRef.current;
         if (!container) return;
@@ -251,11 +362,15 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
             if (container.contains(e.target)) return;
             clearTimeout(saveTimerRef.current);
             const wb = univerAPIRef.current?.getActiveWorkbook();
-            if (wb) setDataFnRef.current(name, wb.save());
+            if (wb) {
+                const raw = wb.save();
+                const m = gepafinMetaRef.current;
+                setDataFnRef.current(name, { ...raw, gepafin: { ...m, inputOnlyMode: m.editableCells.length > 0 } });
+            }
         };
         document.addEventListener('click', flushOnExternalClick, true);
         return () => document.removeEventListener('click', flushOnExternalClick, true);
-    }, [name]); // name is stable ('template')
+    }, [name]);
 
     // Prevent page scroll while hovering over the spreadsheet
     useEffect(() => {
@@ -278,13 +393,56 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
         e.target.value = '';
     };
 
+    const handleImportAsSheets = (e) => {
+        const file = e.target.files?.[0];
+        if (!file) return;
+        const reader = new FileReader();
+        reader.onload = (ev) => {
+            const imported = xlsxToWorkbookData(ev.target.result);
+            const wb = univerAPIRef.current?.getActiveWorkbook();
+            if (!wb) return;
+            const current = wb.save();
+            const meta = gepafinMetaRef.current;
+            const existingIds = new Set(current.sheetOrder || []);
+            const mergedSheets = { ...(current.sheets || {}) };
+            const mergedOrder = [...(current.sheetOrder || [])];
+            (imported.sheetOrder || []).forEach((importedId) => {
+                let newId = importedId;
+                let counter = 0;
+                while (existingIds.has(newId)) {
+                    counter++;
+                    newId = `${importedId}_${counter}`;
+                }
+                existingIds.add(newId);
+                mergedSheets[newId] = { ...imported.sheets[importedId], id: newId };
+                mergedOrder.push(newId);
+            });
+            initializeUniver({ ...current, sheets: mergedSheets, sheetOrder: mergedOrder, gepafin: meta });
+        };
+        reader.readAsArrayBuffer(file);
+        e.target.value = '';
+    };
+
     const handleSave = () => {
-        const workbookData = univerAPIRef.current?.getActiveWorkbook()?.save() ?? {};
+        const wb = univerAPIRef.current?.getActiveWorkbook();
-        setDataFn(name, workbookData);
+        if (wb) {
+            const raw = wb.save();
+            const m = gepafinMetaRef.current;
+            setDataFn(name, { ...raw, gepafin: { ...m, inputOnlyMode: m.editableCells.length > 0 } });
+        }
     };
 
     return (
         <div style={{ width: '100%' }}>
+            {context === 'application' && <div className="formElementSettings__fieldDescription" style={{ marginBottom: '12px' }}>
+                <p><strong>{__('Celle modificabili (verde)', 'gepafin')}</strong> — {__('Clicca destro su una cella e scegli "Segna/rimuovi cella modificabile" per definire quali celle il beneficiario potrà compilare. La modalità inserimento dati si attiva automaticamente non appena viene definita almeno una cella modificabile.', 'gepafin')}</p>
+                <p style={{ marginTop: '8px' }}><strong>{__('Celle di validazione (ambra)', 'gepafin')}</strong> — {__('Segna una cella come "cella di validazione" e inserisci una formula che restituisce TRUE/FALSE. Se il risultato non è vero al momento dell\'invio, il campo viene considerato non valido. Esempi di formule utili:', 'gepafin')}</p>
+                <ul style={{ marginTop: '4px', paddingLeft: '20px' }}>
+                    <li><code>=NOT(ISBLANK(A1))</code> — {__('cella A1 obbligatoria', 'gepafin')}</li>
+                    <li><code>=AND(A1&gt;0, A1&lt;100)</code> — {__('valore numerico tra 0 e 100', 'gepafin')}</li>
+                    <li><code>=LEN(TRIM(B2))&gt;0</code> — {__('testo non vuoto in B2', 'gepafin')}</li>
+                </ul>
+            </div>}
             <div style={{ marginBottom: '8px', display: 'flex', gap: '8px', justifyContent: 'flex-end' }}>
                 <input
                     ref={fileInputRef}
@@ -293,13 +451,29 @@ const ElementSettingSpreadsheet = ({ value, name, setDataFn }) => {
                     style={{ display: 'none' }}
                     onChange={handleImport}
                 />
+                <input
+                    ref={addSheetsFileInputRef}
+                    type="file"
+                    accept=".xlsx,.xls,.csv,.ods"
+                    style={{ display: 'none' }}
+                    onChange={handleImportAsSheets}
+                />
                 <button
                     type="button"
                     className="p-button p-button-outlined p-button-sm"
+                    disabled={inputOnlyActive}
                     onClick={() => fileInputRef.current?.click()}
                 >
                     {__('Importa foglio', 'gepafin')}
                 </button>
+                <button
+                    type="button"
+                    className="p-button p-button-outlined p-button-sm"
+                    disabled={inputOnlyActive}
+                    onClick={() => addSheetsFileInputRef.current?.click()}
+                >
+                    {__('Aggiungi fogli', 'gepafin')}
+                </button>
                 <button
                     type="button"
                     className="p-button p-button-sm"

src/pages/BandoFormsEdit/components/BuilderElementSettings/index.js

@@ -163,6 +163,7 @@ const BuilderElementSettings = ({ closeSettingsFn, callStatus, context }) => {
                                 .map((o) => <ElementSetting
                                     key={o.name}
                                     setting={o}
+                                    context={context}
                                     callStatus={callStatus}
                                     changeFn={onChange}
                                     updateDataFn={onUpdateOptions}/>)
@@ -260,6 +261,7 @@ const BuilderElementSettings = ({ closeSettingsFn, callStatus, context }) => {
                                     .map((o) => <ElementSetting
                                         key={o.name}
                                         setting={o}
+                                        context={context}
                                         callStatus={callStatus}
                                         changeFn={onChange}
                                         updateDataFn={onUpdateOptions}/>)
@@ -272,6 +274,7 @@ const BuilderElementSettings = ({ closeSettingsFn, callStatus, context }) => {
                                 .map((o) => <ElementSetting
                                     key={o.name}
                                     setting={o}
+                                    context={context}
                                     callStatus={callStatus}
                                     changeFn={onChange}
                                     updateDataFn={onUpdateOptions}/>)

src/pages/BandoFormsPreview/index.js

@@ -180,6 +180,7 @@ const BandoFormsPreview = () => {
                                 if (!tableColumns) {
                                     tableColumns = head(o.settings.filter(o => o.name === 'criteria_table_columns'));
                                 }
+                                const template = head(o.settings.filter(o => o.name === 'template'));
                                 const step = head(o.settings.filter(o => o.name === 'step'));
                                 const mime = head(o.settings.filter(o => o.name === 'mime'));
                                 const formula = head(o.settings.filter(o => o.name === 'formula'));
@@ -233,6 +234,7 @@ const BandoFormsPreview = () => {
                                         sourceId={0}
                                         useGrouping={false}
                                         tableColumns={tableColumns ? tableColumns.value : {}}
+                                        template={template ? template.value : null}
                                     />
                             }) : null}
                     </form>