How to delete a test step using excel add in

Hi,

     I am using Spira Import Template and Excel add in to update existing test suite in my project.

I have imported all the test cases from the project into the excel template and want to delete few test steps from different test cases.

When I just delete the test step row from the excel and export it into Spira I see that the test step still exist in the Spira test instance.

Have also tried to just delete the content of the test step and not remove the entire row. However I am not able to remove the test steps using excel template.

Can anyone let me know how I can do this?

Thanks

Rahul