Slow opening xlsm files after august 2023 update (2308) 16731.20170

PEEETSBENT23  

We also have similar problems. Since the update to the Version 2308, some of us encounter massive delay/lagg or long-responding time by normal operations like switching between worksheets, loading a text file, klicking at a dropdown menu, or double-klicking to edit cell contents. We have no idea what happened.  The only difference between those users encountering this problem (version 2308) and those who do not have this problem (version 2302) was the version difference.  What even frustrating was, those who use office version 2308 do not always have such problem, yet it happens very often. Some encountered such problem almost every time.  Now many of us got back the version 2302 and could work normally, but the security updates for the version 2302 will only be provided until this September (2024). That is to say, thereafter, it will be desaster.  At the moment we can only hope Microsoft will have fix this problem in an even neuer version.

In our excel sheets, there are a lot of drop downlists and a lot of macros. But these can not excuses as we have this our excel tool working just fine for many many years. 

Thanks

Jesse