Report Designer for .net Applications
Report generator for Qt Framework
QASreport - is a multi-platform C ++ Qt library for building reports
Qt based report solution
Michel Max MMSpread is an API XLSX files without the MS Excel ins...
A pure PL/SQL reporting engine (transforms jrxml to PDF)
V5Cart is a full featured free open source shopping cart
KBarcode is a barcode and label printing application for KDE 4.
although fully functional, this is a pre-framework that you can extend
ProofReading Markup Language for transmission of corrections