Welcome to the forums. You could copy the files to a cloud account that the other person has access to, an SD card if your phone has one, or hook the phone up to a PC and copy them that way. You could also, depending on the size of the files, share them via email, but that would not be as secure as a physical transfer.
If you need additional help or have more questions or details to share, please join the site so you can reply in this thread. See
this link for instructions on how to join Android Central.