What Is the File Extension R02?
An extension usually clues you in to the contents of the related file. For example, DOC refers to a word-processing document and .MOV is a movie. However, some extensions, such as R02, have nothing to do with what's inside the file.
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Description
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The R02 extension shows that the file is a second in a sequence of parts belonging to a compressed archive. For example, MYFILE.R02 is part of MYFILE.R01 and may have higher-numbered parts such as MYFILE.R03.
Programs
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These parts are created by WinRAR for Windows systems and RAR for Macintosh and Unix. You cannot know the contents of the archive until it is fully reconstructed and decompressed.
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Advantages
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Because the pieces are smaller than the original, they can be stored on smaller media and are more quickly transmitted through emails and website links.
Joining
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To reconstruct the original, put all the pieces into one folder so that WinRAR or RAR can find them easily.
Disadvantage
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If you lose any of the smaller parts, you won't be able to recreate the complete. To avoid this problem, always keep a backup of the full original.
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