Signed-off-by: caner <5658514@qq.com>

demo.ts

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+import * as XLSX from 'xlsx'
+
+// 测试excel 合并单元格
+const testCell = () => {
+    const xlsxData = [['姓名', '年龄', '成绩'], ['', '', '语文', '数学', '英语'], ['我', '18', '20']]
+    // xlsxData 是 Excel 的内容
+    const workSheet = XLSX.utils.aoa_to_sheet(xlsxData)
+    // 设置工作表的记录范围
+    // [列号][行号]，A1 则代表 A 列的第1行
+    // 列数一般是已知的（未知时可以设置为ZZ）
+    // 行数则以 xlsxData 内容的长度结束即可
+    workSheet['!ref'] = `A1:AI${xlsxData.length}`
+    // s 意为 start ，即开始的单元格
+    // r 是 row ，表示行号，从 0 计起
+    // c 是 col ，表示列号，从 0 计起
+    const merge = [
+        // 纵向合并，范围是第1列的行1到行2
+        { s: { r: 0, c: 0 }, e: { r: 1, c: 0 } },
+        // 纵向合并，范围是第2列的行1到行2
+        { s: { r: 0, c: 1 }, e: { r: 1, c: 1 } },
+        // 横向合并，范围是第1行的列3到列5
+        { s: { r: 0, c: 2 }, e: { r: 0, c: 4 } },
+        // 纵向合并 第1列 3~4行
+        { s: { r: 2, c: 0 }, e: { r: 3, c: 0 } },
+        // 纵向合并 第2列 3~4行
+        { s: { r: 2, c: 1 }, e: { r: 3, c: 1 } }
+    ]
+    workSheet['!merges'] = merge
+    console.log(1111, workSheet)
+
+    const openDownloadDialog = (url: any, saveName: string) => {
+        if (typeof url === 'object' && url instanceof Blob) {
+            url = URL.createObjectURL(url) // 创建blob地址
+        }
+        const aLink = document.createElement('a')
+        aLink.href = url
+        aLink.download = saveName || '' // HTML5新增的属性，指定保存文件名，可以不要后缀，注意，file:///模式下不会生效
+        let event
+        if (window.MouseEvent) event = new MouseEvent('click')
+        else {
+            event = document.createEvent('MouseEvents')
+            event.initMouseEvent('click', true, false, window, 0, 0, 0, 0, 0, false, false, false, false, 0, null)
+        }
+        aLink.dispatchEvent(event)
+    }
+
+    const sheet2blob = (sheet: any, sheetName = 'sheet1') => {
+        const workbook = {
+            SheetNames: [sheetName],
+            Sheets: {} as any
+        }
+        workbook.Sheets[sheetName] = sheet
+        // 生成excel的配置项
+        const wopts = {
+            bookType: 'xlsx', // 要生成的文件类型
+            bookSST: false, // 是否生成Shared String Table，官方解释是，如果开启生成速度会下降，但在低版本IOS设备上有更好的兼容性
+            type: 'binary'
+        } as any
+        const wbout = XLSX.write(workbook, wopts)
+        // 字符串转ArrayBuffer
+        const s2ab = (s: string) => {
+            const buf = new ArrayBuffer(s.length)
+            const view = new Uint8Array(buf)
+            for (let i = 0; i !== s.length; ++i) view[i] = s.charCodeAt(i) & 0xFF
+            return buf
+        }
+        const blob = new Blob([s2ab(wbout)], { type: 'application/octet-stream' })
+
+        return blob
+    }
+
+    openDownloadDialog(sheet2blob(workSheet), 'test.xlsx')
+}

package.json

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+{
+  "name": "exp2excel_demo",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "xlsx": "^0.18.5"
+  }
+}