As it turns out, I have both a backed up FFT ISO I made many years back and an actual legit copy of Microsoft Office XP, so I'm able to do all of this madness now.
I have followed the steps pretty faithfully, but when I try to CTRL+B into the SCUS_942.21 file, it tells me that it'll grow larger as a result. That means that CDMage can't import it without some issue, and that further means that whenever I do import it, things turn out really, really, really messy.
Any common things I might be doing wrong?
Make sure the cursor is on the first position when you are going to CTRL B
Well, when I searched for the location, I did it relative to the beginning, meaning that no matter where my cursor was, it would end up at the specified address.
Update: When I look at the spreadsheet, there's a lot of cells with #REF! in them, which I believe means a reference is borked... could this be ruining my hex block?
Did you install the analyst toolkit? If so, did you Move cells or something?
The Analysis Toolpak actually came with Excel on here. I enabled it, and set calculation to automatic, as well.