I do actually, its a pretty simple one, but works for me.

Set your target, and start divisor. Enter your effective win dividend in the Win Divi column (ie if you backed 3 horses, and one won at $6, your win divi is only $2). You then have to manually adjust your divisor after wins/losing runs.

Then there is the option to record the results of "series" as well, to keep track of your results.

Hope this helps.

Okay, because I use open Office, it doesnt allow that sort of file type.
Anybody got a suggestion?