Preserve QExcell strikethrough formatting

src/io/excellOffice.test.ts

@@ -1,4 +1,5 @@
 import { describe, expect, it } from "vitest";
+import JSZip from "jszip";
 import {
   buildChartXml,
   buildCellXml,
@@ -77,7 +78,7 @@ describe("excellOffice OOXML helpers", () => {
   it("сохраняет базовое форматирование ячеек XLSX в XML листа", () => {
     const cellFormats = {
       A1: { bold: true, fontSize: 14, textColor: "0f5fae", fillColor: "fff2cc", horizontalAlign: "center" as const },
-      B2: { italics: true, underline: true },
+      B2: { italics: true, underline: true, strike: true },
       C3: { fillColor: "bad-color" }
     };
     const registry = createCellStyleRegistry([cellFormats]);
@@ -90,6 +91,27 @@ describe("excellOffice OOXML helpers", () => {
     expect(emptyCellXml).toContain('<c r="C3" s="1"/>');
   });
 
+  it("записывает зачеркивание ячейки XLSX в styles.xml", async () => {
+    const blob = await exportXlsxBlob({
+      id: "workbook",
+      title: "Strike.xlsx",
+      updatedAt: "2026-06-01T00:00:00.000Z",
+      activeSheet: "sheet-1",
+      sheets: [
+        {
+          id: "sheet-1",
+          name: "Sheet 1",
+          cells: { A1: "Deleted" },
+          cellFormats: { A1: { strike: true } }
+        }
+      ]
+    });
+    const zip = await JSZip.loadAsync(await blob.arrayBuffer());
+    const stylesXml = await zip.file("xl/styles.xml")?.async("string");
+
+    expect(stylesXml).toContain("<strike/>");
+  });
+
   it("читает базовое форматирование ячеек XLSX из styles.xml и XML листа", () => {
     const styleTable = xlsxStylesXmlToCellFormatTable({
       styleSheet: {
@@ -97,7 +119,7 @@ describe("excellOffice OOXML helpers", () => {
           numFmt: { numFmtId: "164", formatCode: "dd.mm.yyyy" }
         },
         fonts: {
-          font: [{}, { b: {}, i: {}, u: {}, sz: { val: "14" }, color: { rgb: "FF0F5FAE" } }]
+          font: [{}, { b: {}, i: {}, u: {}, strike: {}, sz: { val: "14" }, color: { rgb: "FF0F5FAE" } }]
         },
         fills: {
           fill: [{}, {}, { patternFill: { fgColor: { rgb: "FFFFF2CC" } } }]
@@ -116,6 +138,7 @@ describe("excellOffice OOXML helpers", () => {
       bold: true,
       italics: true,
       underline: true,
+      strike: true,
       fontSize: 14,
       textColor: "0F5FAE",
       fillColor: "FFF2CC",
@@ -142,6 +165,7 @@ describe("excellOffice OOXML helpers", () => {
         bold: true,
         italics: true,
         underline: true,
+        strike: true,
         fontSize: 14,
         textColor: "0F5FAE",
         fillColor: "FFF2CC",
@@ -347,7 +371,7 @@ describe("excellOffice OOXML helpers", () => {
           mergedCells: [{ start: "A1", end: "C1" }],
           hyperlinks: { A1: "https://example.com/budget" },
           cellFormats: {
-            A1: { bold: true, fontSize: 14, textColor: "0F5FAE", fillColor: "FFF2CC", horizontalAlign: "center" },
+            A1: { bold: true, strike: true, fontSize: 14, textColor: "0F5FAE", fillColor: "FFF2CC", horizontalAlign: "center" },
             AC20: { underline: true },
             D20: { numberFormat: "dd.mm.yyyy" },
             E20: { numberFormat: "0%" }
@@ -381,7 +405,7 @@ describe("excellOffice OOXML helpers", () => {
     expect(imported.sheets[0].mergedCells).toEqual([{ start: "A1", end: "C1" }]);
     expect(imported.sheets[0].hyperlinks).toEqual({ A1: "https://example.com/budget" });
     expect(imported.sheets[0].cellFormats).toEqual({
-      A1: { bold: true, fontSize: 14, textColor: "0F5FAE", fillColor: "FFF2CC", horizontalAlign: "center" },
+      A1: { bold: true, strike: true, fontSize: 14, textColor: "0F5FAE", fillColor: "FFF2CC", horizontalAlign: "center" },
       AC20: { underline: true },
       D20: { numberFormat: "dd.mm.yyyy" },
       E20: { numberFormat: "0%" }