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Compression
Compression means to reduce the size of a data file for example a document, spreadsheet, image, sound file etc.
It is a good idea to compress large files because they can take up a lot of storage space on your hard disk. They will also take a long time to send as an attachment by email.
Before you can use a compressed file, you must uncompress it.
Compression is usually carried out by using a piece of utility software such as 'WinZip'.
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Click on this link: Compression
2020-10