File-sharing 101: How to actually share files in Google Drive and OneDrive Share large files, photos and videos with co-workers and family members across the globe -- free. Here's how.

The Excel file may say it’s locked if the user who shared it with you is currently editing the document. It can also be because the Office app running in the background has already opened the file.

If you want to set an expiration date and password when sharing Excel files online, here is how you can do that. It is possible to do both of them when using Excel Online.