A report set is a collection of workspaces that Report Server generates based on the values specified in a Report.cfg configuration file.
In your Insight installation folder, each subfolder within the <working profile name>\Reports folder represents a report set that has been created. Each report set has its own Report.cfg configuration file within that subfolder.
In the Profile Manager in Data Workbench, report sets appear as subfolders within the Reports folder. For more information about the Profile Manager, see the Data Workbench User Guide.
By defining specific configuration settings for a report set in its Report.cfg file, you can schedule the creation and distribution of the reports, including who receives which reports and in what formats.