This application creates copies of the active document with the help of an Excel table that is currently copied in the clipboard (ctrl+c). It goes through the parameters of the Excel table in the clipboard, updates them to the model and saves it to the defined project.

The requirements for the application to work are:

• Have an active document.
• The model needs to be parameterized with user parameters.
• A valid Excel table that is copied to the clipboard at the moment of execution.

A valid Excel table is one whose column headers match the names of the defined user parameters of the active document (besides the “Name of File” special header) as well as Autodesk® Fusion 360™/ Unit parameter value expressions.

For more here's a brief tutorial: https://centurysturgeon.github.io/Smart_Copies_Tutorial.pdf