If you need to import a list of todays runners along with the generally available prices that you can use with the Cymatic sheet, please see attached.
Ths was run at 11:15 Sunday night ready for racing Monday 31/08/2015. (Takes about 2 or 3 mins).
When you switch from race to race, you can compare the current price against the prices at the time the programe was run. The first race and prices are already shown.
You may find this useful as a measurement of how far a price has drifted/contracted in a certain time.
As mentioned, the prices shown (taken from here): http://www.oddschecker.com/horse-racing/racing-coupon are ones that are generally availble and not Betfair specific (The prices in the sheet have been converted to decimal).
Any non runners have been removed, although of course, this is liable to change nearer the time.
There are a couple of sheets that are hidden that hold the data imports.