LibreOffice<p>It&#x27;s pretty trivial to set up a template, a data source, and have the mail merge feature generate your reports for you. If you F4 in Writer, pick a data source you can drag&amp;drop fields or queries directly into the document where you want them. The rest is just a case of trivial document editing which you&#x27;re more than likely already familiar with.<p>Your data source can be anything from a csv (spreadsheet), an .odb or an external data connection to a database (eg, postgres).