For those technically challenged, thanks to Lucky_Phil..
These come with no implied warranty or support.
Rename the file and remove the .doc file extension. i.e "roonies.gdb.doc" rename file "roonies.gdb"
.gdb = garmin
.rou = furuno
.usr = Lowrance
.gpx = gps exchange format (generic)
Regards
Honda.
Roonies.gdb.doc
Roonies.gpx.doc
Roonies.rou.doc
Roonies.usr.doc