Question on AW3 expander that would be resolved by the manual if I could find it

[SlickRCBD <spamyourself@127.0.0.1>]

I just tried to open a large text file in AppleWorks 3.0 on my 4MB Apple 
IIGS, and got told that "This file exceeds the limits of AppleWorks on 
this Apple //." "2350K" available is displayed in the lower right hand 
corner of the screen.

AppleWorks reports the text file as 540K.

Many years ago I aquired a PC Transporter card, and it came bundled with 
the "AppleWorks 3 expander" which was suppost to increase the maximum 
limits on file sizes in AppleWorks. I had only the 1MB RAM card that 
came with my IIGS installed at the time, and no hard drive. I later 
added a hard drive and the 4mb card in that order. I don't remember if I 
ran AW3 expander after instaling the 4mb card, or even if it was 
necessary, as it's been over a decade since I did that. Would AW3 
expander have allowed me to open that 540K text file and I just forgot 
to run it after some reinstall, or is it even past the expanded limits? 
I'd check the manual for the limits on that program, but I can't find it 
in the dusty old box with all my A2 manuals.

I'm sorry if I composed this question badly, but I do know it's 
necessary to convery my system configuration and what may or may not 
have been installed and when. My sketchy memory of things I did 10 years 
ago doesn't help. The old IIGS is reduced to mostly displaying FAQs for 
games I'm playing them for the second time to see what I missed.