Modify various properties for file extensions. Gunners File Type Editor allows you to you to create/modify various properties for file extensions. Each user can have different properties for a file extension. For example, the default program to open .txt files when you double click on a file with the .txt extension is Notepad. GFTE allows you to change that.

Gunners File Type Editor Features:
1. Create new extension
2. Delete extension
3. Change icon for extension
4. Change description
5. Change perceived type
6. Change MIME content type
7. Change default program used to open extension
8. Edit command line args to pass to program to open extension
9. Compares extensions - Shows what extensions were added or deleted (good to see what an install adds or deletes)
10. Shows user modified and user created extensions
11. Search for an extension
12. Modify Open With program list that explorer uses
13. Edit DDE info for extension
14. Modify EditFlags for extension
15. Admin mode allows you to do all of the above but system wide

No installation required, just unzip to a directory and run gfte. Uninstall, just delete the gfte directory.

The license of this software is Freeware, you can free download and free use this file management software.