update at 2026-02-14 11:20:38

miniapp/pages/index/index.js

@@ -863,19 +863,16 @@ Page({
 
   /**
    * 统一读取并解析文件。
-   * - CSV 按 utf8 文本读取
-   * - XLS/XLSX 按二进制读取
+   * - 统一按二进制读取，交由解析器根据内容与后缀判断
+   * - 避免上传文件名缺失/后缀错误时误按 CSV 读取（出现 PK... 头）
    */
   readAndApplyFile(filePath, fileName, onReadFailPrefix) {
     const that = this;
-    const extension = getFileExtension(fileName) || getFileExtension(getBaseNameFromPath(filePath));
-    const isCsvFile = extension === 'csv';
     const readOptions = {
       filePath,
       success(readRes) {
         try {
-          const filePayload = isCsvFile ? String(readRes.data || '') : readRes.data;
-          const table = parseTableByFileName(fileName, filePayload);
+          const table = parseTableByFileName(fileName, readRes.data);
           that.applyParsedTable(table, fileName);
         } catch (error) {
           that.setData({
@@ -891,9 +888,6 @@ Page({
         that.refreshInfoLogs();
       }
     };
-    if (isCsvFile) {
-      readOptions.encoding = 'utf8';
-    }
     wx.getFileSystemManager().readFile(readOptions);
   },