There might be corrupt data in excel spread sheet. I have reproduce new sheet issue went away in the past.

Microsoft Excel inject extra data (including formula) which can be put into Excel that might affect the test run. To ensure the extra formatting is not used I had recommend exporting sheet to CSV file then closing Excel and re opening the CSV file with Excel. This would clean out most of the isssues.

I have found a tool that will clean out the Excel document called [CleanXLsx](https://github.com/TomMargrave/CleanXLSX) which is a VBScript that will solve this issue and other issues.