Contact the WhatIsFileExtension Team
Have a question about a file type, a guide or a tool? Send us a message or email the team and we will help you find the answer.
Technical Questions
File will not open, a guide step fails or a tool question.
support@Write to Our Team
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Before You Write
- Search the file extension library to see if your file type has a guide
- Try the checks on our support page
- Name the extension, the app, your operating system and the exact error
Contact Questions Answered
What is the best way to reach the team?
Use the form on this page or email support@whatisfileextension.com for technical questions. Email contact@whatisfileextension.com for general queries.
What should you include in a technical question?
Name the file extension, the app and its version, your operating system and the exact error message. Say what you already tried.
How do you report a mistake in a guide?
Email support@whatisfileextension.com with the page link and what is wrong. We review it and update the page when the guide is wrong.
Where do you ask for a new file type?
Use the Submit a File Type page. Our team researches the format, tests it on our own files and adds a guide.