Some files when i download them don't just work ....

[AC Question]

It gives me this message "file format error" .... concedering that when i search for the file on my device i can find it but its bytes are zero ... is the problem with my android or the website ?? ... please i need help .... By the way i use samsung galaxys4

 

[B. Diddy]

Welcome to Android Central! What kinds of files are these, and where are you downloading them from?