Archive formats are file types used to store multiple files and folders in a single compressed file. This makes it easier to manage, share, and transfer data. Common archive formats include .zip, .rar, and .tar, each with its own method of compression and features. These formats help reduce file size and can also include options for encryption and error recovery. To access the contents of an archive, users typically need specific software, such as .WinRAR or .7-Zip. These programs can extract the files, allowing users to view or edit them as needed. Archive formats are widely used for software distribution, backups, and file sharing.