How can I change spatial reference for tab-file in MapInfo Professional?
the first way is File > Save Copy As and from here click Projection button which locate in the lower right. and the second method i always use is that Tools > Universal Translator > Universal Translator...
i hope it helps you
Operation "Reproject" can be done via
If you need to do "Define projection" instead of "Reproject" then operation is slightly more complex:
I think you can find some additional MapBasic (mbx) utilities which will help to do this in more easy way.