校验XLS文件后缀

@@ -3148,9 +3148,9 @@ Handling Information
                         const AF38 = (worksheet['AF38'] && worksheet['AF38'].v) || '';
                         const AF38 = (worksheet['AF38'] && worksheet['AF38'].v) || '';
                         //判定acc 中是否包含COU 特殊操作代码
                         //判定acc 中是否包含COU 特殊操作代码
                         const S10 = (worksheet['S10'] && worksheet['S10'].v) || '';
                         const S10 = (worksheet['S10'] && worksheet['S10'].v) || '';
-                        if (S10.includes("COU")){
+                        /*if (S10.includes("COU")){
                           this.sphCodes += "COU"
                           this.sphCodes += "COU"
-                        }
+                        }*/
 
 
                         const tempDate=this.NumberToDate(M18);
                         const tempDate=this.NumberToDate(M18);
                         const outFlightDate=tempDate.split('/')[2];
                         const outFlightDate=tempDate.split('/')[2];
@@ -3309,6 +3309,40 @@ Handling Information
                 reader.onload = (e) => {
                 reader.onload = (e) => {
                   try {
                   try {
                     const data = new Uint8Array(e.target.result);
                     const data = new Uint8Array(e.target.result);
+                      // 检查文件头部以用来确认文件格式
+                      const isXLSX =
+                          data[0] === 0x50 &&
+                          data[1] === 0x4B &&
+                          data[2] === 0x03 &&
+                          data[3] === 0x04;
+
+                      const isXLS =
+                          data[0] === 0xD0 &&
+                          data[1] === 0xCF &&
+                          data[2] === 0x11 &&
+                          data[3] === 0xE0 &&
+                          data[4] === 0xA1 &&
+                          data[5] === 0xB1 &&
+                          data[6] === 0x1A &&
+                          data[7] === 0xE1;
+
+                      if (isXLSX) {
+                          let file_name = "";
+                          if (files.name) {
+                              file_name = files.name;
+                          }
+                          this.$message({
+                              type: 'error',
+                              message: file_name + '文件是 .xlsx 格式'
+                          });
+                      } else if (isXLS) {
+                          console.log("文件是 .xls 格式");
+                      } else {
+                          this.$message({
+                              type: 'error',
+                              message: '未知的 Excel 格式'
+                          });
+                      }
                     const workbook = XLSX.read(data, { type: 'array' });
                     const workbook = XLSX.read(data, { type: 'array' });
                     const worksheetName = '格式化打印'; // 指定工作表名称
                     const worksheetName = '格式化打印'; // 指定工作表名称
                     const worksheet = workbook.Sheets[worksheetName];
                     const worksheet = workbook.Sheets[worksheetName];