Like an old-time carnival computer systems also have oddities. Those oddities are miscellaneous files that do not fit into any other category. This is where the Misc files category comes in. It helps gives these files a home of their own.
Examples of miscellaneous files include partially downloaded files, installer files, and renamed files. The miscellaneous category may also include files related to other hardware devices on your computer. Popular file extensions are .CACHE, .MSU, .TMP and .DIC.