makeinfo is a utility that converts a Texinfo file into an Info
file; texinfo-format-region and texinfo-format-buffer are
GNU Emacs functions that do the same.
See section `Creating an Info File' in the Texinfo Manual, to learn how to create an Info file from a Texinfo file.
See section `Overview of Texinfo' in Texinfo: The GNU Documentation Format, to learn how to write a Texinfo file.
@nwnode Using Stand-alone Info, Options, , Top