There is a way of exchanging the PVsyst component data (Geographical sites, PV modules, Inverters, Batteries), with an EXCEL document in tabular form (one line for one component).
The concerned file is named "Components.XLS", stored in the installation directory:
c:\program files (x86)\PVsyst6\DataRO\PVsyst6_data\UserData
When using (modifying) this file, you are advised to save it in your PVsyst data workspace:
The procedure is fully explained in the Excel document, page "Help".
Basically, if you select a whole line in the EXCEL document, you will get a button "Import from table" when opening a new component in PVsyst.
Inversely, in the PVsyst definition dialog of these components, you have a buttin "Export to Table".
In the component's list ("Database" part), you have also a button "Export", allowing the selection of several components at a time.