A Text File report is often structured into groups, with a header for each group, followed by a number of detail lines. For example, a bill of materials report may consist of a header to identify a part, followed by a line for each component required to make that part. The import system can be directed, via an Import Filter, to detect these groups and extract the detail information independently of the header information.

An example of this mechanism, based on the Sage Line 50 Stock Explosion report, is given later.