Video files can be too large to send via E-mail as they often get "timed out".
Try sending it by
http://www.upload.sc/
This site will take files of up to 100.MB and is FREE to use.
Also, to ZIP a file, you will need to use a suitable program, like Winzip. Google for WINZIP.
To use a Zipped file you will need to Un-zip it back to the original type.
.EXE files can often be refused by e-mails as they can be mistaken for a virus so ZIP an .EXE file and it will be accepted OK.