1. Computing

What is an MAT File?

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Question: What is an MAT File?

Did you find an MAT file on your computer and wonder what program should open it? Maybe someone emailed you an MAT file but you're not sure how to use it. Perhaps you tried to open the MAT file but Windows told you that it could not open it.

Before you can open an MAT file (assuming it's even a file format that's intended to be viewed or edited), you'll need to determine what kind of file the .MAT file extension refers to.

Answer: A file with the MAT file extension is a Microsoft Access Table Shortcut file.

Other types of files may also use the MAT file extension. If you know of any additional file formats that use the .MAT extension, please let me know so I can update this information.

How To Open an MAT File:

The easiest way to open an MAT file is to double-click on it and let your PC decide which default application should open the file. If no program opens the MAT file then you probably don't have an application installed that can view and/or edit MAT files.

Warning: Take great care when opening executable file formats received via email or downloaded from websites you're not familiar with. See my List of Executable File Extensions for a listing of file extensions to avoid and why.

MAT files can be opened with Microsoft Access or The MathWorks MATLAB.

If you know anything else useful about MAT files, please let me know so I can update this page.

Tip: Use Notepad or another text editor to open the MAT file. Many files are text-only files meaning no matter the file extension, a text editor may be able to properly display the file's contents. This may or may not be the case with MAT files but it's worth a try.

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

How To Convert an MAT File:

There are two main ways to attempt to convert an MAT file to another file type:

The first option involving opening the MAT file in its native program is preferable because it's both easier and will probably result in a more accurate file conversion. Of course if you don't have a program that opens MAT files, a third-party file conversion tool (the second option) could be very useful.

Important: You cannot usually change a file extension (like the MAT file extension) to one that your computer recognizes and expect the newly renamed file to be usable. An actual file format conversion using one of the methods described above must take place in most cases.

Still Having Problems Opening or Using an MAT File?

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 MAT file and I'll see what I can do to help.

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