You can manually create a design table in Microsoft Excel by typing configuration names in the first column (cells A3, A4, and so on) and parameters in the first row (cells B2, C2, and so on). Cell A1 must be blank.
In the Design Table PropertyManager, select From file to browse to the Excel file and insert it in the model.
The example below is a valid design table as long as cell A1 is blank.