Сreating a new Form

Call transaction ZXLWB_WORKBENCH.

Initial screen will popup

XLSX Workbench initial screen

Specify name of the form:

And press the button  .

The workbench screen will be displayed

XLSX Workbench design

Press a button  in the application toolbar, for the new form saving. 

In the popup window specify a target package:

Next steps: