You can use storage services like Dropbox, Google Drive or OneDrive to send really large files. You can also imagine how slow it is to upload large amounts of data to Gmail or Outlook! The solution uses cloud storage services go, then the recipient will download these files, and merge them into one with specialized software, the disadvantage of this method is that it requires a lot of complicated operations. Web-based email services like Gmail and Outlook allow attaching a file of up to 25MB, to send larger files, you have to use software to trim these files and send them one at a time. Attach files to emails if the size is small service hosting, and send download links to recipients. If you have to share a large file with someone, you have two options: one is to attach it to an email and send it, if it's too big to attach to an email, you have to upload it to one.