Hello, my name is Mario, and I would be happy to assist you with your issue.
I’m sorry for what happened!
Since you’re using the web version of Excel, could you please try the following actions:
Clear your browser’s cache and cookies
Test using a different browser
Temporarily disable browser extensions to test
Check the file size and complexity (also verify if macros are enabled)
Test using the Excel Desktop version
Please let me know if these steps worked for you.
Best regards,
Mario B.