Test data plays an important role in any Test Automation. Many test scenarios exist which are to be parameterized for successful testing of the Application. The Data Repository contains a spreadsheet which is divided into number of rows and columns. You can easily create a data repository by entering values within cells. The created Data Repository can be used across different Test Cases and Gherkin scripts for data driving the tests.

For example, if you want to use data repository file with the test case then follow below given steps: 

Open Test script > Select test step > Go to data input argument > Select data repository file column

For detailed information on Data Repository, please refer: https://opkey.crestechglobal.com/user-guide/pages.php?subid=89&accordid=6