Hi Nicholas, there are slight differences. Read rthis article on the pros/cons

https://community.safe.com/s/article/choosing-the-right-mapinfo-format

From the writer, there is the help documentation in the bottom left which should launch

Precisely MapInfo Extended TAB Reader/Writer (safe.com) support more file formats, >2GB tabs supported. If you want extended char length, use the extended tab reader/writer

Precisely MapInfo TAB (MAPINFO/MITAB) Reader/Writer (safe.com)

One difference I have found is Character Encoding

MapInfo TAB (MITAB) allows you to set Character Encoding

Precisely MapInfo TAB (MAPINFO) does not

The MITAB seems to do long character string field lengths, but doesn’t support >2GB TAB files. If you need this, go to the Extended TAB reader/writer. You may also see a difference in how each handle the null case. There is a substitution of -9999 for null