If you put the die type along the top row (just the numbers, no d) and this in A2 it should do what you want.
=RANDBETWEEN(1,A$1)
You can copy the cell without editing the formula and fill as much of the sheet as you want. Press F9 to reroll.
If you prefer a percentile die with zero, you can change it to
=RANDBETWEEN(0,9)*10
Or just combine the 2 dice as a single d100
Oh that works even better since there's no "21" showing up! Thank you.
Does PF2E even use percentile dice? LOL
Does PF2E even use percentile dice?
…huh. I guess not. Somehow I never noticed that before.
This is basically what I do as well.
One thing I find useful is to list your party's Perception modifiers, use the formula above for a random d20 result for each PC, then add them together (for example, =B2+C2). Then when they walk into a room, hit F9 for an instant whole-party secret Perception roll.
I’m not sure about a formula but you can use Visual Basic to make a random number generator for a bunch of rolls and place those values in an array and then place the array in the appropriate cells.
I can’t tell you exactly how to do
This as I haven’t used excel or Visual Basic in a while and never actually linked them together myself. I don’t know if you can even do it for free as I think visual studio costs money, though that may show how long I’ve been away from that side.
I can say you can also do the same as what I describe above using Google Sheets and App Scripts in probably 20 lines of code. I am more fluent with those and I think it would be pretty easy even if you don’t know how to code.