Man pages matching name mformat in section 1:

mformat.1.es	debian 10 / manpages-es-extra
mformat.1.pl	debian 10 / manpages-pl
mformat.1.en	debian 10 / mtools
mformat.1.pl	debian 11 / manpages-pl
mformat.1.en	debian 11 / mtools
mformat.1.pl	debian 12 / manpages-pl
mformat.1.en	debian 12 / mtools