In this article, Stellar highlights the possible causes behind this Outlook data file error and explain the troubleshooting ...
This isn't another file browser trying to look pretty.
Microsoft is working to resolve a known issue that prevents some users from opening Excel email attachments in the new Outlook client.
You can access four new Copilot skills directly from File Explorer. You can summarize, ask questions, and compare up to five files. The process supports Microsoft 365 files, PDFs, and web files.
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