ALT File Extension
Dynamics AX Temporary Format
- File Type alt
- Developer Microsoft
- Popularity
- Application WordPerfect
- Category Data Files
What is a ALT file?
Files with the ALT extension are specifically tied to Dynamics AX Temporary Format, a Data Files type, and there are 6196 files in this category.
The Dynamics AX Temporary Format (ALT) was developed by Microsoft, which created file format and 242 programs to work with them.
ALT file support extends to various operating systems, including Windows. To create a ALT file, you can choose from 2 programs such as WordPerfect and WordPerfect Office.
How to open a ALT file?
If you cannot open a ALT 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.
Thanks to their popularity, WordPerfect and WordPerfect Office are often the go-to programs for managing ALT files. If you need the newest version of WordPerfect, just access the Corel website. From there you can download the installer compatible with all systems.
Once WordPerfect is installed, the OS should configure it as the default tool for opening ALT files.
Make WordPerfect the default ALT viewer
Change the default app to open files on Mac
- Right click or use Control + Left Click on the desired ALT file to access a dropdown menu of actions;
- Choose "Open in Application" and click "Other";
- Towards the bottom of the window, find the "Enable" menu, which is already set to the default option, "Recommended Programs";
- In this menu, select "All Programs" and search for WordPerfect. Check the box next to "Always open in app" to make it the default option.
Change a default app in Windows
- Start by right-clicking on your ALT file, then select the "Open with" option and choose "Choose another app" from the menu that appears;
- Inside the popup window, scroll through the list of applications and specifically choose WordPerfect as the application to associate with your ALT file;
- Check the "Always use this app" checkbox and click "OK".
Finding answers to ALT file problems
If ALT files are giving you trouble, small modifications to your software can help. Check out the troubleshooting tips below to fix these issues.
What can lead to sudden WordPerfect crashes?
Insufficient updates for Corel products can cause WordPerfect to crash. Be sure to regularly install the latest software updates.
A computer restart is often the key to solving numerous common problems. That’s why, it is recommended to restart the computer before making any changes to the software settings.
What is the recommended approach to repair a damaged ALT file?
Use a recovery program to open the damaged ALT file, and in the menu, click "Repair" to start the repair operation. Wait for the recovery process to finish as it will automatically restore the damaged data files.
What are the ways to check if my ALT file is damaged?
Characteristics of corrupted ALT data files can include:
- The file encounters problems during the opening process or shows error indications;
- Editing the archive in WordPerfect is hampered by poor overall performance;
- The file causes WordPerfect or other software to hang or crash during various operations;
- An unexplained increase in the size of the ALT file;
- Actions performed on the file result in the appearance of error notifications;
How to edit a ALT file?
To modify ALT files, you need to install special software that makes it possible to open and edit data files. Online ALT editors are more restricted compared to software designed for Dynamics AX Temporary Format.
Best ALT editors 2026
According to these factors, we have compiled a list of available ALT editors.
| ALT Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| WordPerfect | Corel | Windows | 4.9 out of 5 (36 reviews) |