When you "zip" a file, you'll compress its data and reduce how much space it takes up on your computer or phone.
You can convert a video to an MP3 file using Adobe Media Encoder, which can help save you storage space on your device.
About 10 years ago, a prominent tech executive confidently informed me that computer files would become obsolete. The exec was Bret Taylor, who at the time was building a Microsoft Word alternative ...