Since your spreadsheet is so well thought-out and so well organized, I'm moving over to it. I'll likely use some external pivots or Access or something to work with my historicals and the current spreadsheet.
I think I found a minor bug. Your 1RM calculations on the stats page are set to setsxreps, instead of another 1RM calculation formula like =[weight]0.03333[reps]+[weight]. I'm making the adjustment now.
Also, our rounding formulae are just a little bit different somehow. Given the exact same input weghtsxreps-military press, 170x5-mine produces the following for the 5/5/5 week:
Seems minor enough to me, but I thought I'd throw it out there.
Here's the formula on the sheet I've been using for a few years:
=CONCATENATE("5x")ROUND(([90% 1RM]0.65)/[smallest increment of weight],0/5)[smallest increment of weight]
So it uses an increment of weight (5 pounds) to aid in the rounding.
Again, thanks for a really nice spreadsheet and to being open to making changes.