How to save a video sent to me on WeChat onto my iPhone or PC?

Really need the video to be able to email or text to someone, but it was only taken on the WeChat app. How do i get it saved either to my iphone photo library or onto my pc?

If the phone is an android device, in most devices today, the media files gets saved directly onto the phone memory of a memory card(if you have one). You can connect either your phone or your memory card to the pc to transfer your files to the system.
Regards