Here's a spreadsheet by Keith Burris. He describes it as a mechanism for keeping track of trading activity.

>You mean it's not your spreadhseet?
Nope, it's his. I reckon some will find it useful, so I agreed to stick it on gummy-stuff ... as long as Keith agreed to receive email related to its use.
The spreadsheet looks like this:

Click on picture to download the spreadsheet

>Yeah, so how does it work?
It's well documented. Just place your cursor over a cell with them wee red corners and get an explanation (as illustrated in the picture).
Keith provides a further explanation in a MS Word file, here.

>So what's your role in all this, huh?
I make it available to the world