DDSXLL is an Excel add-in which adds various, more or less bridge-related, functions to Excel.
In includes Double Dummy Solver, a dealing program, and a handy viewer function for displaying deals in a 3x12 block of cells. Please note that Double Dummy Solver has been built into the XLL under this Apache licence.
If you want the program, download it now. To use it, open it in Excel as if it were a spreadsheet. It will be absorbed into Excel like a Spider from Metebelis III landing on Jon Pertwee's back, and Excel will acquire superpowers.
Something like that anyway. There's no proper documentation, but this spreadsheet gives some explanation and examples of how to use the added functions.