The Zip file provided: Traka21_v01.07.03_(03-12-24).zip

Contains:

The software upgrade file
Traka21_v01.07.03_(03-12-24).TUG

Upgrading Instructions
UD0141 - Upgrading the Traka21 Application- V1_1.pdf

Release Notes
Traka21 v1.7.3 Release Notes 03-12-24.pdf

Please start by reading the document - UD0141 - Upgrading the Traka21 Application- V1_1.pdf
This will explain how to upgrade your Traka21