Tools for Viewing/Manipulating Large Txt Files

Doing a database migration project. What are some tools for viewing/manipulating large txt files?

Large as in over 10 million rows (excel 2007 supports about 1million i believe).

Thanks!

try UltraEdit

i’m really curious – do you seriously propose to actually read ten million rows?

LOL no. I need to see what columns are included and figure out the datatypes.

The file was just put on my desk (I have no control over the formatting/schema) and i was told to handle it.
Thanks for the suggestion.