The man utility on UNIX systems lets you view manual (help) pages that are stored in a central location, typically /usr/share/man.
Typing man grep, for instance, pulls the man page for grep from that directory.
But if you have downloaded and unpacked some third-party software that includes a man page, how do you view that before installing it? just giving the name to man gives the error message No manual entry for <yourpage.1>
The answer is to give it a specific path to that file. You can either give a full or relative UNIX path, or if you are in that directory then just do this:
where yourpage.1 is the name of the file you want to view.
Also, to generate a plain text version of a man page, pipe the output through col thus:
man ./yourpage.1 | col -b