Winmail.dat Reader
Inspect Outlook winmail.dat files locally
Choose a `winmail.dat` file to inspect basic TNEF attributes, detect attachment names, and extract readable message fragments when available. The file is not uploaded.
Detected attachments
Winmail.dat FAQ
Why did someone send winmail.dat?
Outlook can wrap rich formatting and attachments into a TNEF file when the recipient mail client does not understand the original format.
Can this open attachments?
No. It lists attachment metadata only. Do not open unknown attachments unless you trust the sender and file.
Is the file uploaded?
No. Inspection happens in your browser.