How to automatically create OpenDocument invoices without OpenOffice

“Articles on how to create OpenDocument invoices already exist
but almost always they require you to start and use OpenOffice
manually each time. Here, instead, I’ll show how to have your
computer to do all your OpenDocument work for you.

“The script explained below takes an ODF template like the one
of the left and generates an ODF text file like the one you see on
the right, which is ready to be printed or sent via email (click on
the pictures for bigger versions or just download the template or
the resulting ODF invoice:”

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