A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
Hi Kate Glickman,
As per your description, please don’t worry we can work together to narrow down and resolve the situation.
It seems you are using WebDAV server to store the files and unfortunately, the WebDAV server related questions are not supported in this community.
To correct place for handling the WebDAV server related issues. if you need assistance, there’s a specific channel for such questions. I requested (please I humbly request you don’t mind) you may contact in Office protocols -Microsoft Q&A ASAP which is a dedicated channel for handling the related queries.
For reference: Development Support
I appreciate your understanding and stay safe!!
Best regards
Waqas Muhammad