Compression of files

​In addition to combining multiple files into a single file, it is possible to compress these files into a single file.

Benefit of doing so is reduction in size for storage and for transfer.

Different file types will have different compression ratio. Usually text files and documents will have high compression ratio, but music and video files especially if they had been already compressed will have poor compression ratio.

Popular compression utilities are Winzip, Winrar, gunzip.

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