Most functions can be done just by dragging and dropping files in and out of the WinZip window. After a familiarization period with the Wizard, all but the most infrequent of users will soon settle into the WinZip Classic interface. The WinZip interface is deceptively simple. Operations are well-integrated with Windows. WinZip simplifies existing working methods and opens doors to new ways of managing data files.
Compaction can vastly reduce the filesize.
This means less disk space is required to store files and reduced transmission time across the wire for electronic transfers, with a saving in online cost. Don't forget that the longer you spend online transferring a file, the greater the risk of corruption through network errors. Filesize makes a real difference. Compression factors Files compress to different levels depending on the type and nature of data they contain. Some files can be compressed to a fraction of their normal size.