Good Morning,
There are a number of formats that can be imported into GRASS through various
routines that have been written. Take a look at the GRASS FAQ page:
http://www.cecer.army.mil/grass/faq.html
Not all the import utilities are part of the main part of GRASS and you will
need to complie these utilities seperately. GRASS can import optional 3 dlgs
and STDS, although you will need to download the C source of the STDS from
the grass archive site. You might also like to take a look at GrassLand:
http://www.cecer.army.mil/grass/LAS/
This product uses the GRASS binaries, but provides pull down selections. This
is much better than XGRASS, and is available for many platforms.
I hope this will help you in your evaluation.
Louis Clarke U.S. Army Corps of Engineers
lclarke@abl-co-r.swa.usace.army.mil Albuquerque District
voice (505)342-3281 Regulatory Branch
fax (505)342-3498 http://www.swa-wc.usace.army.mil/reg/