Get VBA and an Excel spreadsheet for Black-Scholes and the Greeks (Delta, Gamma, Vega, Theta, Rho) here. You can easily use the VBA in your own option pricing spreadsheets.
VBA
Download Finviz Data into Excel
This Excel spreadsheet downloads stock quotes for 6855 companies from Finviz.com using VBA. The stock quotes includes over 65 pieces of financial data, including PE ratios, market capitalization, EPS, moving averages, earnings dates, average true range, and much more.
Credit Default Swap Calculator in Excel
This article introduces credit default swap (CDS) contracts, and offers a free Excel spreadsheet that employs the CreditGrades model to price CDS spreads.
Calculate Implied Volatility with VBA
This article offers VBA code and an Excel spreadsheet to calculate the implied volatility of an option. This parameter is often compared to the historical volatility of the underlying asset to determine if the price of an option represents good value.