To export an existing Ledger,open the "Bookkeeping" from the "Dashboard".
Click on the "Accounting" button to open the Accounting maintenance form.
If this is the first time you enter this screen after logon to MC-Invoice, there are no existing accounts visible on the screen. Ignore that and click on the "Accounting" button.
On the accounting Maintenance form, select the bookkeeping to export the Ledger from.
The screen now will show the selected bookkeeping and the Ledger that it is connected to it.