This text file, an output from bigmap, lists all of the maplets that were used by bigmap the last time it was run. This list includes only the maplets that fall completely inside the borders of the bigmap that was created.
INSIDE.TXT is different from USED_MAPS.TXT, which lists all of the maplets that are contained in the bigmap that was created, some of which may only partially fall in the bigmap.
Here is a sample INSIDE.TXT file:
T00144 T00145 T00146 T00160 T00161 T00162 T00163 END
(Compiled by TC)