Investment-Calc 7.3 provides ready made NPV/ROIC and IRR spreadsheet calculators for Excel.Contains our complete collection of 40 spreadsheets, calculators, tables and databases for calculating investments returns and present values of future payments/receipts . New optional spreadsheet provides Real Estate IRR solutions.Includes a 30 page steer that explains all the calculations and equations required for time based value of money:?I downloaded yourInvestmentCalculationssteer and it was exactly what I was looking for. Thank you for your support?. Steve.