A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
Dear HS_RR_13,
Good day! Thank you for posting to Microsoft Community. We are happy to help you.
As per your description, please let us cooperate and please don’t worry, we can work together to narrow down and resolve the situation.
First, please accept my Apologies for the inconvenience caused to you by this behavior.
It seems the problem happened when you click "Save As" and navigate to your company SharePoint site to save. May I know if my understanding is correct?
May I know have you tried other methods to save work document file into your SharePoint online document library site via sync your SharePoint online document library to create/save files in OneDrive sync folder file Explorer?
It seems you tried all the troubleshooting steps, but the same problem persists. I think this issue might be raised by your local environment (Settings, Registry).
Given this situation, I would suggest you follow the methods below and see if they could help in your scenario:
1.Perform aClean Boot under your Windows, and check if issue persist.
2. Maybe the local settings had affected the application. Thus, we would like you to check whether the issue is related to your user profile. In this situation, we suggest you Create a new user account under your Windows 11 and see if any improvement. It is worth trying because it will help you narrow down whether the issue is caused by a specific corrupted user profile.
In the meantime, to confirm whether this is a bug in a specific version, please provide us the version information. To check version: Open Excel>File>Account>Product Information and capture a full screenshot and share here and we will be tested on that version and verify the result with you.
Your understanding and patience will be highly appreciated. I hope that you are keeping safe and well!
Sincerely,
Waqas Muhammad