Save the workbook to OneDrive, OneDrive for Business, or SharePoint
Open the workbook in Excel
Select Share
Enter the email addresses of the people you want to share with
Choose their permission level, such as Can edit or Can view
Add an optional message
Select Send
Turn on AutoSave if available
Make sure everyone uses the shared cloud version of the file
Use the Review or Share features to track changes and comments
For desktop Excel, go to File, then Share, then Share with People
For Excel for the web, open the file from OneDrive or SharePoint and use the Share button
Avoid saving shared files only on a local computer
Keep the file in a shared location so multiple users can access it simultaneously