MAPC2MAPC Help pages : MAPINFO TAB files
Overview How to .... Grids and Datums Map Images Uses System Issues	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.