How to repeat data in grouped cells?

When I add row groups with an expression in the last column (=CountRows()) I get a report that looks like this:

Code:

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DATE      PRODUCT      COUNT
july 1    red shirt    3
          white shirt  7
july 2    red shirt    12
          white shirt  14

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When I export to excel, the first column is not repeated. I want it to repeat like this instead while retaining the

grouping in the exported file:

Code:

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DATE      PRODUCT      COUNT
july 1    red shirt    3
july 1    white shirt  7
july 2    red shirt    12
july 2    white shirt  14

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Is there a way to do that?