The MindManager format is next only to FreeMind's in being commonly handled
for import or export by other mind mapping software. Mind map files (.mmap) from
versions 5, 6 and 7 are commonly accepted. MindManager of all versions (Back to 2, at least) can make outline format Word or
text files, and these can be imported by some software.
Anyone making an XSLT for conversion to other software not mentioned below is
invited to submit it here for general use.