If you are looking for an exhaustive database of file extensions and other information about fixation of file extension related errors, File-Extension.com is a free online file extension library that may serve your purpose best. Here, you can have a detailed database of some well known file extensions including .WPS files and file extension 3G2.

Many of us know that Windows/DOS, MAC and UNIX all have their different file systems and metadata formats because of their competing influences and over 40 years in computer hardware and software developments, it becomes quite difficult to define an accurate outline of the function and nature of file extensions.

In 1960, the first company that implemented file extensions was Digital Equipment Corporation, as it introduced a file system that broke it within the base name of the file extensions. Then after some time, the same convention was adopted by the Microsoft for its DOS as well as Windows operating system.

Microsoft first originally restricted the base name as to eight characters and the extension of the file to following three characters that made it the combination of 8 letter name with a 3 letter.

Before Windows 95, file extension was restrictive to a great extent and it was in Windows 95 and future versions when longer filenames were allowed.

On the other hand, file extension wasn’t used by UNIX and Mac; they both had developed their own file systems with different convention for storing metadata. The codes contained within the file were used in Mac OSX while in UNIX systems information was stored in a single.

But many believe that the popularity of Windows became the cause of developing the file extension that was counted the typical method of showing a file’s function. These days, Mac OXS is also utilizing file extensions.

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