An Excel worksheet for calculating the funding required for an expanded response to HIV/AIDS at the national level. The Worksheet contains three submodels: the revention models, which calculate the cost of 12 prevention interventions; the care and treatment models, which estimates the cost of five types of care and treatment programs; and the orphan support model, which calculates the cost of three interventions to support children orphaned by AIDS.

The program and manual are available in English, Spanish and French.