When I open a Perl file in Emacs, it goes into Perl mode. When I open a C file, it goes into C mode. This is really cool. But I want to force Emacs to load some specific modes when other extensions are used. (This doesn’t need to be automatic, I just want to be able to press a button and load whatever mode I want.)
So what rediculous combination of keys do I have to press to make this happen?