Frequently Asked Questions

At, we aim to provide clarity on all things related to file extensions. Here are answers to some of the most commonly asked questions by our users.

What is a file extension?

A file extension is a suffix at the end of a filename, indicating its format or application it's associated with. For example, .txt denotes a text file while .jpg indicates a JPEG image.

Why are file extensions important?

File extensions determine how your computer processes files. They help software applications understand how to open, edit, or save the file. Recognizing the file type also helps users to handle the file correctly.

How often is your database updated?

We regularly update our database to include the latest file format developments and information. Typically, updates occur on a monthly basis, but major changes or discoveries might lead to more frequent updates.

Can I request information on a specific file extension?

Absolutely! If you can't find details on a particular file extension, please contact us, and we'll do our best to provide the information.

How can I change the default application for a file type?

On most operating systems, you can right-click on the file, select 'Properties' or 'Get Info', and choose a default application from the given options. Always ensure you're opening files with trusted software to maintain security.

Why can't I open a file even if I have the right software?

Several reasons might be behind this: the file could be corrupted, it might not match the file extension, or the software might be outdated. Always ensure you have the latest software version and that the file source is trustworthy.

If you have more questions or need further assistance, don't hesitate to reach out to our team. We're here to help!