Preserve QExcell active sheet in XLSX

src/features/qexcell/QExcell.tsx

@@ -433,7 +433,7 @@ export function QExcell({ workbook, onChange }: QExcellProps) {
       onChange({
         ...workbook,
         title: imported.title,
-        activeSheet: imported.sheets[0]?.id ?? "sheet-1",
+        activeSheet: imported.activeSheet ?? imported.sheets[0]?.id ?? "sheet-1",
         sheets: imported.sheets.length > 0 ? imported.sheets : [{ id: "sheet-1", name: "Лист 1", cells: {}, mergedCells: [] }]
       });
     } catch (error) {

src/io/excellOffice.test.ts

@@ -12,6 +12,7 @@ import {
   importXlsxFile,
   chartDataPoints,
   chartXmlToSheetChart,
+  workbookActiveSheetId,
   workbookRelationshipTargets,
   workbookSheetRefs,
   worksheetXmlToCells,
@@ -519,6 +520,39 @@ describe("excellOffice OOXML helpers", () => {
         }
       })
     ).toEqual({ rId3: "worksheets/sheet7.xml" });
+
+    expect(
+      workbookActiveSheetId(
+        {
+          workbook: {
+            bookViews: { workbookView: { activeTab: "1" } }
+          }
+        },
+        [
+          { id: "sheet-1" },
+          { id: "sheet-7" }
+        ]
+      )
+    ).toBe("sheet-7");
+  });
+
+  it("сохраняет и импортирует активный лист XLSX через workbookView activeTab", async () => {
+    const blob = await exportXlsxBlob({
+      id: "book-1",
+      title: "Активный лист.xlsx",
+      updatedAt: "2026-06-01T00:00:00.000Z",
+      activeSheet: "sheet-2",
+      sheets: [
+        { id: "sheet-1", name: "Первый", cells: { A1: "Первый" } },
+        { id: "sheet-2", name: "Второй", cells: { A1: "Второй" } }
+      ]
+    });
+    const zip = await JSZip.loadAsync(await blob.arrayBuffer());
+    const workbookXml = await zip.file("xl/workbook.xml")?.async("string");
+    const imported = await importXlsxFile(new File([blob], "Активный лист.xlsx", { type: blob.type }));
+
+    expect(workbookXml).toContain('<workbookView activeTab="1"/>');
+    expect(imported.activeSheet).toBe("sheet-2");
   });
 
   it("создает OOXML chart part для диаграммы XLSX", () => {

src/io/excellOffice.ts

@@ -4,6 +4,7 @@ import { officeTitleFromFileName, readOfficeFileAsArrayBuffer, XLSX_MIME_TYPE }
 
 export interface ImportedExcellWorkbook {
   title: string;
+  activeSheet?: string;
   sheets: Array<{
     id: string;
     name: string;
@@ -201,9 +202,11 @@ export async function importXlsxFile(file: File): Promise<ImportedExcellWorkbook
       return { ...parsedSheet, charts };
     })
   );
+  const activeSheet = workbookActiveSheetId(workbookXml, sheets);
 
   return {
     title: officeTitleFromFileName(file.name, "Книга QExcell.xlsx"),
+    ...(activeSheet ? { activeSheet } : {}),
     sheets
   };
 }
@@ -215,12 +218,13 @@ export async function exportXlsxBlob(workbook: Workbook): Promise<Blob> {
 
   const styleRegistry = createCellStyleRegistry(sheets.map((sheet) => sheet.cellFormats));
   const chartParts = chartPartRefsForSheets(sheets);
+  const activeSheetIndex = Math.max(0, sheets.findIndex((sheet) => sheet.id === workbook.activeSheet));
 
   zip.file("[Content_Types].xml", buildContentTypesXml(sheets.length, chartParts));
   zip.file("_rels/.rels", buildRootRelationshipsXml());
   zip.file("docProps/app.xml", buildAppPropertiesXml());
   zip.file("docProps/core.xml", buildCorePropertiesXml());
-  zip.file("xl/workbook.xml", buildWorkbookXml(sheets.map((sheet, index) => sheet.name.trim() || `Лист ${index + 1}`)));
+  zip.file("xl/workbook.xml", buildWorkbookXml(sheets.map((sheet, index) => sheet.name.trim() || `Лист ${index + 1}`), activeSheetIndex));
   zip.file("xl/_rels/workbook.xml.rels", buildWorkbookRelationshipsXml(sheets.length));
   zip.file("xl/styles.xml", buildStylesXml(styleRegistry));
 
@@ -636,6 +640,18 @@ export function workbookSheetRefs(workbookXml: unknown): WorkbookSheetRef[] {
   });
 }
 
+export function workbookActiveSheetId(workbookXml: unknown, sheets: Array<{ id: string }>): string {
+  const workbook = childRecord(workbookXml, "workbook");
+  const bookViews = childRecord(workbook, "bookViews");
+  const workbookView = asRecord(toArray(bookViews.workbookView)[0]);
+  const activeTab = Number.parseInt(String(workbookView.activeTab ?? workbookView["@_activeTab"] ?? ""), 10);
+  if (!Number.isInteger(activeTab) || activeTab < 0) {
+    return "";
+  }
+
+  return sheets[activeTab]?.id ?? "";
+}
+
 export function workbookRelationshipTargets(relationshipsXml: unknown) {
   const relationships = childRecord(relationshipsXml, "Relationships");
   const targets: Record<string, string> = {};
@@ -689,7 +705,9 @@ function buildRootRelationshipsXml() {
   );
 }
 
-function buildWorkbookXml(sheetNames: string[]) {
+function buildWorkbookXml(sheetNames: string[], activeSheetIndex = 0) {
+  const activeTab = Math.min(Math.max(0, activeSheetIndex), Math.max(0, sheetNames.length - 1));
+  const bookViews = `<bookViews><workbookView activeTab="${activeTab}"/></bookViews>`;
   const sheets = sheetNames
     .map((name, index) => {
       return `<sheet name="${escapeXmlAttribute(name)}" sheetId="${index + 1}" r:id="rId${index + 1}"/>`;
@@ -697,7 +715,7 @@ function buildWorkbookXml(sheetNames: string[]) {
     .join("");
 
   return xmlDeclaration(
-    `<workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships"><sheets>${sheets}</sheets></workbook>`
+    `<workbook xmlns="http://schemas.openxmlformats.org/spreadsheetml/2006/main" xmlns:r="http://schemas.openxmlformats.org/officeDocument/2006/relationships">${bookViews}<sheets>${sheets}</sheets></workbook>`
   );
 }