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With a file open or a file or folder selected, select Share.
If you are working on your desktop and the file hasn’t been saved to OneDrive or SharePoint, select a location you want to upload your file.
Select the down arrow to choose permissions for the link you will be sharing. Options include:
Anyone (link access expires in 30 days)
People in your organization
Specific people
Select Apply to save the permissions.
Enter the name or email address of people you want to share with.
Type a message.
Select Send.
Or, you can select Copy Link and send the link in an email or add it to a file.