Q: What is the difference between uploading a file and downloading a file?A: Uploading a file via the internet is simply the act of sending or sharing a file. The most familiar examples of uploading would be sending e-mails, sending photos and P2P file sharing.Downloading is the opposite of uploading and is the receipt of information from the internet, such as e-mails, movies and music.Both upload and download require bandwidth and transfer time is determined by both file size and the internet service that you are using.