Not only are there hundreds of standard and common extensions we’ve already learned to recognize by heart by seeing them every day, there are also many specific and rare extensions we come across from time to time because as a matter of fact, every programmer can create extensions for his purposes. So how do we handle that?
How to fix broken file associations
Did you ever have the problem that you wanted to change the file association of a certain file type but were not able to ? The normal way of right-clicking the filetype, clicking on Properties, then on the Change button next to the Opens With entry and browsing to the executable did not work for me because the executable was not added as the default software.

