- updated;

src/pages/BandoEdit/components/BandoEditFormStep3Excel/xlsxToWorkbookData.js

@@ -0,0 +1,58 @@
+import * as XLSX from 'xlsx';
+
+export function xlsxToWorkbookData(arrayBuffer) {
+    const wb = XLSX.read(arrayBuffer, { type: 'array', cellStyles: true, sheetStubs: true });
+
+    const sheets = {};
+    const sheetOrder = [];
+
+    wb.SheetNames.forEach((sheetName, sheetIndex) => {
+        const ws = wb.Sheets[sheetName];
+        const sheetId = `sheet_${sheetIndex}`;
+        sheetOrder.push(sheetId);
+
+        const cellData = {};
+        const ref = ws['!ref'];
+        if (!ref) {
+            sheets[sheetId] = { id: sheetId, name: sheetName, cellData };
+            return;
+        }
+
+        const range = XLSX.utils.decode_range(ref);
+        for (let r = range.s.r; r <= range.e.r; r++) {
+            for (let c = range.s.c; c <= range.e.c; c++) {
+                const cellAddress = XLSX.utils.encode_cell({ r, c });
+                const cell = ws[cellAddress];
+                if (!cell) continue;
+
+                // CellValueType: 1=STRING, 2=NUMBER, 3=BOOLEAN
+                let t;
+                if (cell.t === 'n') t = 2;
+                else if (cell.t === 'b') t = 3;
+                else t = 1;
+
+                if (!cellData[r]) cellData[r] = {};
+                cellData[r][c] = { v: cell.v !== undefined ? cell.v : (cell.w || ''), t };
+            }
+        }
+
+        const mergeData = (ws['!merges'] || []).map(m => ({
+            startRow: m.s.r,
+            startColumn: m.s.c,
+            endRow: m.e.r,
+            endColumn: m.e.c,
+        }));
+
+        sheets[sheetId] = { id: sheetId, name: sheetName, cellData, mergeData };
+    });
+
+    return {
+        id: 'imported-workbook',
+        name: wb.SheetNames[0] || 'Sheet',
+        appVersion: '0.18.0',
+        locale: 'enUS',
+        styles: {},
+        sheetOrder,
+        sheets,
+    };
+}