MAPC2MAPC Help pages : MAPINFO TAB files
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The program will read MAPINFO TAB calibration files for most datums where the projection is Latitude/Longitude or Transverse Mercator (including UTM). The numeric datum codes used by MAPINFO are translated in a file TABDATUMS.TXT.

Units are always assumed to be metres.

It may be possible to add other projections - please contact the author.