MAT File Extension

MAT file icon

Microsoft Access Table Shortcut Format

What is a MAT file?

The MAT extension is used by Microsoft Access Table Shortcut Format and falls under the categories of Settings Files, Blocked Email Attachment Files and Data Files, covering 7462 files.

Microsoft, the developer of the Microsoft Access Table Shortcut Format (MAT), has released file format and 242 programs designed to handle them.

MAT files are supported by Windows. There are 2 programs available to open a MAT file, including popular tools like Microsoft Access and Microsoft Office.

Programs that support MAT files

How to open a MAT file?

If you are having trouble opening a MAT file, it usually means the right software is not installed. Choose a program from the list that matches your operating system. Next, visit the official website of the developer, download the software, and install it on your device.

The most popular programs for working with MAT files are Microsoft Access and Microsoft Office. To install the current version of Microsoft Access, go directly to the official Microsoft website. The universal package for all operating systems is available there.

After setup, the operating system should recognize MAT files and link them with Microsoft Access.

Setting Microsoft Access as default MAT viewer

Changing the default program in Windows

  1. Right-click on your MAT file and choose the "Open With" option. Then click "Choose another app" to continue the process;
  2. Choose Microsoft Access from the available applications listed in the pop-up window to set it as the default application to open your MAT file;
  3. Be sure to check the "Always use this app" checkbox, and then click "OK" to confirm your selection.

Change the default app for a file type in Mac

  1. Initiate a right click or use Control + left click on the desired MAT file to open a menu where you can select various actions;
  2. Select "Open in application" and click "Other";
  3. Scroll down to the bottom of the window, and there you will find the "Enable" menu. The default selection is "Recommended Programs";
  4. Choose "All Programs" within this menu and locate Microsoft Access. Check the box next to "Always open in app" to set it as the default program.

How to edit a MAT file?

To edit MAT files, you need to install specialized software that allows you not only to open but also to modify settings files. Online MAT editors usually provide fewer features than software created specifically for Microsoft Access Table Shortcut Format.

Best MAT editors in 2026

Based on your described criteria, here is a list of available MAT editors.

MAT Editor SoftwareDeveloperPlatformsOverall Rating
Microsoft AccessMicrosoftWindows4.4 out of 5 (34 reviews)

Tips and tricks to solve problems with MAT files

MAT files can sometimes be tricky, but minor software adjustments usually resolve the issues. Refer to the tips below for guidance.

Are there any symptoms that my MAT file is damaged?

Corrupted MAT settings files may have one or more of the following symptoms:

  • File hangs or crashes in Microsoft Access or other programs;
  • Error dialogs are displayed when interacting with the file;
  • The file does not open or opens with errors;
  • Unexplained increase in MAT file size;
  • Poor performance when editing a file in Microsoft Access;

Why does Microsoft Access crash or shut down frequently?

The absence of software updates can cause Microsoft Access to crash. It is recommended to install the latest available updates for Microsoft products.

Restarting your computer is an essential troubleshooting step that can resolve many common problems. It is recommended to restart your computer before making any changes to the software settings.

Is there any specific software or utility that can help repair a damaged MAT file?

Start a data recovery program and open the damaged MAT file. Go to the menu and select the "Repair" option to repair the file. Then wait for the recovery process to complete, which allows you to automatically repair corrupted settings files.