Comptable does not rely on a database, and does not yet have an administration backend, so installation and management is all done by hand.
It works by creating and manipulating XML files inside the /data/ folder, then pointing the browser to index.php?id=1 (replace '1' with XML filename) to call the script, with data being fetched from its respective XML. An example file, named 1.xml, has been included for easy reference. Not all fields need to be included.
Step-by-step instructions on how to edit these files will be made available somewhere in the near future.