Based on the XFRX documentation , a standout feature you could implement is Conditional Data Export to XLSX/ODS with Formula Support
XFRX is typically distributed as shareware or commercial software. Developers must include the XFRX class libraries and the associated FLL file in their application distribution. xfrx documentation
Without the docs, you wouldn’t know that SetOutputFormat() must be called before instantiating the report. Based on the XFRX documentation , a standout
The official XFRX website maintains a Knowledge Base covering: Based on the XFRX documentation