EK RTF report are non visual components which allow to use all power of MS Word or other rtf-compatible editor to create, preview, edit and print your reports. 

How to make it working: 

Design time: 

• create report template in any text processor 

• save it in RTF format 

• place EkRtf component on a form 

• set InFile (input rtf template) property 

Run time: 

• prepare data in your application, create variables if necessary 

• run report using one of Execute or ExecuteOpen methods 

• run MS Word (or other editor) if you want to view, edit or print your document 

See more details in creating report template and code example sections.