Are spreadsheets tucked away somewhere safe?

I have just found an excellent SS titled Is inflation a property owner's best friend on my HD and assume that it must have come from here. If so: Where do I find it? if not: How do I post it?
I remember that thread. Several of us posted spreadsheets in it.
Sim also wrote an article with that title (or similar) at invested. Haven't got tmie to look.