.album file format won't open

Musescore will create files with the extension .album but when I try to associate the file with Musescore under Windows 10 then double click on the .album file, I get an unsupported format error from Musescore.

If I want to read my .album file, I have to load it from the Album submenu found under File -> Album.

This is a drag. Why can't Musescore recognise my album files off the bat and automatically load this menu?