fileits
FileIts is a term that does not have a single established meaning across domains. In general writing, fileits is not a standard word. When capitalized as FileIts, it is occasionally observed as a proper noun, used as a brand name or project title in niche software contexts. However, there is no widely recognized product, specification, or organization with that name in major references, so no definitive history or set of features can be described.
In other contexts, file its may be parsed as the verb file followed by the possessive pronoun
If you encounter the term, its meaning will be highly context-dependent. Consult the source material to determine