Is there a method to split a notepad document into smaller chunks?

[illini43]

I have a super huge hand history file (113MB) that Stars sent me and Poker Tracker is having a tough time importing it all at once.

Is there anyway to split the doucment into smaller chunks besides selecting and scrolling? (there are 90K HH files, so that would take FOREVER)

Any help is appreciated, hopefully this is a stupid and easy question to answer. Thanks.