BDL programs You can code a reporting application using Genero Business Development Language. Writing the Genero BDL report program A Genero BDL report program retrieves the data and outputs it to a report. Create labels: the report program (Genero BDL) A common use of reports is to create a page of labels, such as address labels. Creating labels requires you to create a report design document representing a single label and a report application that prints multiple labels on a page. Report Data Wizard The Report Data Wizard provides an easy-to-use interface for creating the data source.