https://learn.microsoft.com/en-us/office/client-developer/excel/calling-user-defined-functions-from-dlls https://learn.microsoft.com/en-us/office/client-develop

https://learn.microsoft.com/en-us/office/client-developer/excel/calling-user-defined-functions-from-dlls https://learn.microsoft.com/en-us/office/client-developer/ex... Calling user-defined functions (UDFs) from a worksheet is as simple as calling built-in functions: You enter the function via a cell formula.