This document discusses ration balancing software options for sheep. It begins by explaining why ration balancing is important to meet nutritional requirements and maximize animal performance while managing costs. There are several methods for ration balancing, including by hand or using computer programs. When using computer programs, the most common method is substitution, where feeds are edited until nutritional requirements are met. The document then reviews several free and paid ration balancing software and spreadsheet options, comparing their features such as whether they require Excel or Access, use of substitution method, and ability to perform least cost formulation.