Open Expert 2.1
This program helps organize multiple programs using the same file extensions.
It allows you to associate many programs with many extensions in Windows. Your settings in Open+ override Windows associations and won't allows programs to take over associations. It also lets you override the Windows default to set the specific program to open an associated file type. It allows you to create customizable categorized sets of associations you can quickly activate or deactivate, often categorized by tasks, professions, software types or file types.