What Is a FAX File?

How to Open, Edit, and Convert FAX Files

FAX Files
FAX Files.

A file with the FAX file extension is a Fax file. They're usually in the TIFF format, meaning that they're basically just renamed image files.

Some FAX files may instead be a template file created with the Now Contact software. These kinds of files provide a layout for a fax document (an .NWP file) and may include pre-loaded options for the document, which is useful if you're creating multiple similarly formatted documents.

Note: A similar FAX image file is an SFF Structured Fax file. Unrelated to this FAX file format is also the FaxFile mobile app that lets you fax documents using a phone or tablet.

How to Open a FAX File

Most image management programs should be able to open FAX files, like Windows' default photo viewer, the Windows Paint program, XnView, InViewer, GIMP, Adobe Photoshop, and many others.

If you have trouble getting a FAX file to open, try changing the .FAX extension to .TIFF or .TIF and then try to open the file. This isn't a trick you can usually do with most files, but since FAX files are almost always just TIFF files masked by a different extension, this is likely to work.

Some FAX image files might be created with GFI FaxMaker (but they're still just TIF files), in which case you can use it to open the FAX file.

Now Contact Fax Template files are supposed to open with the Now Contact software from Now Software, using the Use Template drop down menu option, but i don't have a download link for that program.

If you have the Now Contact program, you can build new FAX files through the Define > Print Templates > Faxes... menu. After naming the template, you can edit its dimensions and layout before it's created.

Note: If you find that an application on your PC does try to open the FAX file but it's the wrong application or if you would rather have another installed program open FAX files, see our How to Change the Default Program for a Specific File Extension guide for making that change in Windows.

How to Convert a FAX File

I don't know of any free file converters that can save a file with the .FAX extension to some other format, but know of several that work with TIF/TIFF files. Like I said above, your FAX file is almost certainly a simple image file, so try renaming it to have the TIF or TIFF file extension.

Once you do that, you can then use a free image converter to convert that file to something else like PNG, PDF, JPG, etc.

I'm sure the Now Contact software can convert a FAX Template file to another document format but I don't have the software to confirm this. If possible, I'm sure it's accomplished through the program's File > Save As or Export menu.

Still Can't Open Your File?

If your file doesn't open with the suggestions from above, then there's a good chance that you're misreading the file extension and attempting to open a non-FAX file with a FAX file opener, which probably won't work.

There are lots of file extensions that closely resemble ".FAX," including FAT, FAS (Compiled Fast-Load AutoLISP), FDX, FBX (an Autodesk FBX Interchange file), and FAR (The Sims Archive). However, in none of those cases do the files open with the programs linked on this page.

If your file doesn't end with .FAX, then research the file extension that it does have to learn more about what format it might be in, which programs are able to open it, and what, if any, file converter supports that format.

More Help With FAX Files

If you do have a FAX file but it's not opening like it should, see Get More Help for information about contacting me on social networks or via email, posting on tech support forums, and more. Let me know what kinds of problems you're having with opening or using the FAX file and I'll see what I can do to help.

If you're not looking for anything related to a .FAX file but rather a fax service for sending faxes, see our Free Online Fax Services list.

Was this page helpful?