Hotel / Airline FF Programs Spreadsheet?
 

While exploring the FT forums (fora?) the other day, I found a spreadsheet that some helpful person had compiled.

Someone had very intelligently assembled a sizeable SS with hotel programs on the X axis and airlines on the Y, with a mark to indicate who converted their points / miles with which partners.

I have now been looking for probably two hours to try to find it again. Does anybody know the one I mean, and if so, can you please reply with the link?

TIA
The Office Admin