Windows 10: I have a password protected excel file Office Professional 2016 on my Dell XPS Windows 11...

Since the last Windows 11 update to version 24H2 and a crash which autosaved open spreadsheets, I could not open the password protected file. I tried creating another file and protected that file and similarly it did not open, just whirred around or came up with a message "the last time you tried to open filename.xlsx, it caused a serious error". Then I could not open Excel at all. After stopping and re-starting Excel I did manage to somehow open it once. There is no "unprotect button" showing, but I did manage to take off the protection by clearing the password and saving it as unprotecte

:)

 

Unable to open a password protected Excel file

I have also found that surprise :-( . 4 years using Excel files with Symbian mobiles phones without this type of the issues. But know with the last of Microsoft technology, we find that it is not use able from professional point of the view.

 

ms. excel bug? file that protect by password become unprotected file?

i have ms. excel 2010 document that protected by password, when i send it through e-mail the file become unprotected file, in other name the pass is gone
is it the bug or i just missed something on that

 

Feature update to Windows 10, version 1803 and subsequent inability to use Microsoft Office XP Professional Excel

Following a recent automatic Windows update (installation of Windows 10, version 1803, per my computer's Settings, Update History log). I have been unable to use Microsoft Office XP Professional Excel. I can open Excel and prior created Excel files, but
if I attempt to input anything new into a cell of a prior created Excel file, Excel closes down instead. I also noticed that a newer Office version of Excel that came with this computer was activated for a few days following installation of Windows 10, version
1803 (but has since de-activated most features). I never activated the newer version before and installed Office XP Professional from a CD instead, since I purchased that program a while back and am most familiar with it. I have had no problems using Office
XP Professional Excel prior to the recent Windows 10, version 1803 installation and I need Excel for work. Microsoft Office XP Professional Word, which I also need for work, is still working just fine following the Windows 10, version 1803 installation;
only Excel has been negatively impacted. Please advise on how to get my Office XP Professional Excel working again. Thank you.