It’s too big for email, and likely too big for Dropbox or Gdrive unless you have a paid account with them.
That means you’re going to have to get slightly technical. Find a freeware SFTP program that can spawn a server on the host, and connect to it from the client to download the file.
Good luck!
Been working great for me for years! You do need to take care when setting up for a stable and consistent experience, but their docs are pretty thorough and regularly updated.