I transfer my movies to a micro sd card what app 2 us

[AC Question]

I transfer my movies to a micro sd card but when I go to open it, it says unable to find application to perform this action. Which app should I download?

 

[dpham00]

What format are the movies in? If it is a proprietary format then you would probably have to re download . If it is not proprietary then you can use the stock file browser