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For security reasons, a number of file names and extensions can't be uploaded since they are executable, used by SharePoint Server, or used by Windows itself.
Can I share files from my WVU OneDrive account with external, non-WVU colleagues?
Yes, you can select to share your file with select people, members of your organization or anyone with a direct link. You can also adjust your sharing options to grant editing access or open files in view only mode, block downloads, and set a password or expiration date for file access.
View Microsoft’s Share OneDrive files and folders page for more information.
Why can’t I share an item?
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