TAR is a UNIX command that allows you to create a single archive file containing many files. Such archiving allows you to maintain directory relationships and facilitates transferring complex programs with many separate but integrated parts that must have their relationships preserved.
As technology improved, the term TAR remained, but now it refers to the combination of one or many files into one compressed file with a .tar file extension. TAR files can be manipulated on Windows computers by using software tools designed for this purpose. But how to open .tar file on Mac? 

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