Does anyone knows how to change the setting of the windows so that i can change the file type of a file by changing it's name.. like for example.. a file's name is sdlfsd.avi.bc! how can i change the setting of windows so that i can view the file type wif it's name coz now i will view the file as sdlfsd.avi without the format and i wan to change the format by juz renaming it if anyone noe wat i mean.. can u plz help/? Thanz alot in advance and i'm using window xp.. Thanz..