MDT File Extension

GeoMedia Access Database Template
- File Type mdt
- Developer Intergraph
- Popularity
- Application Microsoft Access
- Category Database Files, Data Files, Blocked Email Attachment Files
- Format Binary
What is a MDT file?
The MDT file extension is linked to GeoMedia Access Database Template and belongs to the categories of Database Files, Data Files and Blocked Email Attachment Files, which include 6538 files.
The GeoMedia Access Database Template (MDT) was developed by Intergraph, which created file format and 5 programs to work with them.
MDT files are supported by Windows. To open a MDT file, you can choose from 3 programs such as Microsoft Access, GeoMedia and Microsoft Office.
How to open a MDT file?
If you cannot open a MDT file, it is most often due to missing software. Select a program from the list according to your operating system. Then go to the official website of the program developer, download it, and install it on your device.
Microsoft Access, GeoMedia and Microsoft Office stand out as the preferred programs to manage MDT files effectively. 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 successful installation, your operating system should seamlessly handle MDT files via Microsoft Access.
Set Microsoft Access as the default MDT program
Change Default Program on Mac
- Right click or Control + left click on the desired MDT file;
- Choose "Open in Application" and click "Other";
- Go to the lower section of the window, where you will find the "Enable" menu. By default, it is set to "Recommended Programs";
- Select "All Programs" from this menu and proceed to search for Microsoft Access. Check the box next to "Always open in app" to set it as the default option.
Set default programs for Windows
- Start by right-clicking on your MDT file, then select the "Open with" option and choose "Choose another app" from the menu that appears;
- In the pop-up window, select the Microsoft Access application;
- Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening MDT files.
Convert files to and from MDT
For difficult MDT files, try converting them to formats like CSV or similar formats to improve usability.
Be aware that converting a MDT file may reduce some features, but you can usually revert it to the original format.
Convert MDT to other file formats
Solve problems with MDT files
MDT files may present some challenges, but most can be easily addressed with minor software tweaks. See the troubleshooting tips below for guidance.
What are the ways to check if my MDT file is damaged?
MDT database files that have become corrupted may display one or more of the following symptoms:
- The file does not respond or shows errors when opening it;
- The file exhibits poor performance during editing operations in Microsoft Access;
- The file stops responding or freezes in Microsoft Access or other programs;
- Unexplained MDT file size inflation;
- Actions performed on the file result in the appearance of error notifications;
Why does Microsoft Access crash or shut down frequently?
Insufficient updates for Microsoft products can cause Microsoft Access to crash. Be sure to regularly install the latest software updates.
Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.
Is there any specific software or utility that can help repair a damaged MDT file?
Use a recovery program to open the damaged MDT file, and in the menu, click "Repair" to start the repair operation. Wait for the recovery process to finish, allowing automatic repair of damaged database files.
How to edit a MDT file?
To make changes to MDT files, you need specialized software that allows both opening and editing the database files. Online MDT editors offer fewer capabilities than applications optimized for GeoMedia Access Database Template.
Best MDT Editor Software in 2026
With the mentioned criteria in mind, we have assembled a selection of MDT editors.
| MDT Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| GeoMedia | Intergraph | Windows | 4.8 out of 5 (39 reviews) |
| Microsoft Access | Microsoft | Windows | 4.4 out of 5 (34 reviews) |




