${set} mappings lines is not removed in the exported data

Description: Upon using ${set} with time format, the mapping lines are reflected as empty lines in the exported data.

Pre-conditions

How to reproduce

1. Use the following template to export the data:  Time Tracking (3) (1).xlsx

Actual result/Attachments:
The exported data creates empty lines corresponding to the {set} mapping                           

Expected result: The data should be provided without empty lines.