The OSU Across-Breed EPD calculator is a Microsoft Office Excel® Macro-Enabled Worksheet. It has been formatted to run most efficiently in Excel 2016. However, an alternative version that will function using older Excel versions is available. In order for all of the features to work, macros must be enabled. The OSU Across-Breed EPD calculator can be downloaded here or contact your local OSU Extension Office. Data for the program will change yearly according to the most recent USMARC AB-EPD data. Therefore, the software program will change yearly as well. New versions will be made available through this website.