Open Excel workbook and take a screenshot after writing a result in the cell

Hi as part of checking expect and actual results between two columns, we compare and generate the results in the cell. For each scenarios once a result is being update we want the Excel workbook to be opened and screenshot needs to be taken.

Kindly help on the above

Do you want to take screenshot of Excel app window by Katalon Studio?

No, Katalon Studio do not have such functionality.

I do not know how to take screenshot of Excel at all.

I do not see why you want to take screenshot of Excel. Is it worth? Why?