File Extension WPS is microsoft works save file, which is specific to versions of the works word processor. The Microsoft Works Suite has for many different versions, combining many ways to turn office programs into one application.
This combined application setup used up less disk space and a smaller amount of memory, making it what someone with an older model computer that lacks the proper system requirements to run different versions of the applications that the Works Suite used. Later versions have changes to a more modern style, opening each different part of the suite in its own window.
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