Total Commander

This suggestion is referred to the dialog shown at Configuration > Edit/view > Associations... > New type

Currently «through the GUI», only is possible choose associations to determinates "executables" (*.exe *.com *.bat and *.pif) a good solution could be add to the combobox "type", the mask: *.* or file types in environment variable %PATHEXT%

Really this is a minor issue, the field "Associate with:" can be written manually to a different file type.

Sombra
Also as a workaround, you can type *.* directly in the File Open dialog, and it will show you all files.

Hey, good point.
*.* + <ENTER> Did the trick. Thank you.