If you cannot associate a file extension to an application in Windows 11/10, and see an error message The program you selected cannot be associated with this file ...

When you double-click a file on your computer, Windows may launch an application to run or display the file. Windows knows how to do this because it maintains a list of known file types and the names ...

I should have put this in my book I just learned two Windows command line utilities that I never knew existed: assoc and ftype. Both will display or modify the file association list, and are ...

In the Mac OS it is possible to change the default program the operating system will use to open a file when you double-click on it. After you have changed this file association, though, you may want ...

Microsoft uses file associations to set default programs for opening different file types on all its operating systems. As a result, when you open a file, be it text, image, or document, on your ...

Windows: Whether Windows isn't sure how to open a specific file, or you'd rather just use a different program than the default, you probably have to deal with Windows' Open With menu from time to time ...

File Association Fixer for Windows 8, Windows 7 & Windows Vista will let you repair and fix file associations and extensions in a single click. UPDATE: File Association Fixer v2 supports Windows 10, ...

I moved my Applications folder to another drive, then moved it back to my boot drive. Somewhere in the shuffle, the file type association of the Desktop (~/Desktop) got reassigned to Terminal (weird, ...