You can make your own but can't copy the KCBS scoresheet. Need 4 columns and 7 rows in excel. Headings are box number, appearance, taste tenderness. Judges write in box number before they give out the appearance score.
Comment on the bottom - Score between 2 and 9 and 7 is average. You can get more info reading the KCBS rules for 2010.
Then if you want to use the weighting for KCBS (not legal unless it's strictly practice) just build a spreadsheet to calculate the scores for each team and drop the lowest after the calcualtions for weighting have been done. It's real easy to do for a 10 - 12 team event.