You can send a zip file in Gmail if you want to send a large file to someone without using Google Drive.

Zipping files combines multiple files into a single compressed archive, making them easier to store and share. This is particularly useful when you need to send large numbers of files through email or ...

It's easy to unzip files on your iPhone and save all of the contents to your phone with the help of free apps. Here's how to do it using the iZip app.