That is just description by (old) software for a looong time....
All fbl files are defined like Israel map
all other files that come in same folder are map
POI are described like POI Australia_WhereiS_21, New_Zealand_WhereiS_10, etc...
It comes from a time when there were not many map editions, who knows, it is possible that they lead the origin from from the publications of that time and keeped it that way, maybe it is related to some of the contracts.
Main program and its database are not supplemented and modified for a long time...
And an internal marking of nng has an impact, since all files (ftr, fpa...) are detected as fbl - probably designed to make the program easier to handle with them - ie as a supplement to the main fbl file...
While someone from nng does (not) confirm this, we can only guess![]()



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