1、打开“我的电脑”在右上角找到“组织”点开，找到文件夹很搜索选项。2、在对话框中选择第二项“查看”，在高级选项中找到“隐藏已知文件类型的扩展名”把前面的勾去掉。现在我们就可以看到文件的后缀了，右键点击文件“重命名”把文件后缀改成“xls”3、改完后看一下，文件就可以打开了 首先来看...
Thefile format is not valid errorkeeps haunting the Excel users. The appearance of this error can easily be recognized when the concerned XLS file doesn’t open. Each time when the user tries to open the XLS file format, this error pops up. This indicates that the concerned Excel XLS file...
What Does Excel Cannot Open the File Because the Extension Is Not Valid Mean? When this warning message appears, it simply means that either the Excel file got corrupted or maybe theExcel file format or file extension is not validor compatible with the program. Besides, this error occurs due...
If you're encountering the "Excel cannot open because file format is not valid" error due to permission issues, you can try changing the group permission settings of the Excel document. Here's how: Step 1:Right-click on the problematic Excel file and select "Properties." In the Properties...
If the above workaround gets failed to fix the error Excel cannot open the file ‘file.xlsx’ because the file format is not valid, then it confirms that .xlsx file is corrupted. To fix the corrupted worksheet, Microsoft Excel already has an inbuilt feature known as ‘Open and Repair’....
Hi all. All of a sudden, whenever I open any Excel file (Office 2013; Win 10), it displays the message, > Excel cannot open the file '~$PERSONAL.XLSB' because the file format or file extension is not valid. Verify that the file has not been corrupted and that the file extensio...
Excel cannot be open the file 'filename.xlsx' because the file format or file extension is not valid Hi All, I have a excel.xlsx file saved in my system which has been corrupted .I atleast need to recover the data stores .It is a file of 124 KB and has around 35 ...
Hi. When I right-click on my desktop and create a new Excel file and try to open it, it gives the error "Excel cannot open the file 'New Microsoft Excel Worksheet.xlsx' because the file format or file extension is not valid"
"Excel cannot open the file because the file format or file extension is not valid. verify that the file has not been corrupted and the file extension matches the format" I don't have any back up of these files, I tried Excel's Open and Repair option, I tried changing the file ...
inspect_excel_format 这个函数里唯一可能返回的 None 的代码在这里 peak 是文件头，这里的意思是说如果...