That's because some1 uploaded a .bas file,.. Browsers normaly look for .exe, .zip, .rar, and several others as downloads, but some files are marked as readable, it thinks it sorta like a website:
You can manually download it tho, Just right-click it and hit "Save Target As.." or some browsers use: "Save Link As..",.. You'll get a Save dialog, same as when you save with a editor, just put in where you want it to go, and bingo.. its downloaded...
Edit: XD... darn.. beatin to it..
