Ender 2 Pro corrupted micro-sd card

We used our brand new Ender 2 Pro printer by using the already made samples that was included in the program, then we uploaded a file to the micro-card, then inserted into the printer but the screen does not show it??..we then try to see if the file was in the program but the laptop reads "Corrupted"???.. Where can we get a copy of the original program?. Would appreciate anyone's help.