File Format and Extension Don’t Match Error Fixed in Excel , apply KB5002242 after 9 Aug 22

File Format and Extension Don’t Match Error Fixed in Excel , apply KB5002242 after 9 Aug 22

Microsoft Common Vulnerabilities and Exposures CVE-2022-33631

Microsoft not issue new patch to get ride of this problem, the windows update will install KB5002242 again after uninstall, can consider stop the windows update services temporary, but will increase security risk of Windows OS.

Microsoft release kb5002242 confirm known issue and will cause open error while file path too long. The description file format or file extension is not valid or file format or file extension is not match.
#excel
#kb5002242
#longfilepath
#excelnotmatch
#filetype
#extension
#CVE-2022-33631

Video Time Line
00:00:00
Get error when open excel file, the error message will
easy confuse on long file name issue

00:00:07
The file format and extension of %FILENAME% don't match.

00:00:12
檔案名稱.xlsx 的檔案格式與副檔名不相符此檔案
可能已損毀或不安全，除非您信任此檔案源。

00:00:31
Goto All Setting

00:00:36
At search box type prog"
and select Add or remove programs

00:00:46
Click Programs and Feature on left hand side

00:00:52
Select View installed updates

00:00:58
At top right serach box input
kb5002242

00:01:10
Select any one of KB5002242 and uninstall

00:01:20
System should be remove All kb5002242

00:01:47
After finsihed and reboot.
Microsft confirm this is known issue

Referance Link