Report Writer comprises three main components:
Report Script Editor is a text editor that you use to write report scripts. Report commands define formatted reports, export data subsets from a database, and produce free-form reports. Execute the saved script to generate a report. Saved report scripts have the file extension .rep.
Report Extractor retrieves data information from the Essbase database when you run a report script.
Report Viewer displays the complete report. Saved reports have the file extension .rpt.