r.in.ascii file sizes

Hello,

Does anyone know a way around editing the header of ascii files (to be
imported
into grass using r.in.ascii) that are over 1 gig? VI does not work and
I'm wondering
if someone knows of alternative text editors that could be used....

thanks, alynne.

--
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
& Alynne Bayard (alynne@cast.uark.edu) &
& Research Assistant - Tree-Ring Laboratory &
& Ancient Cross Timbers Project &
& Department of Geosciences, Ozark Hall #108 &
& University of Arkansas &
& Fayetteville, AR 72701 &
& tel: (501) 575-4277 &
& (lab) http://www.uark.edu/dendro/ &
& (xtimber) http://www.uark.edu/xtimber/ &
& {me= http://www.cast.uark.edu/~alynne\} &
&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&