GAMS and Excel: writing and checking results with automatic closing and opening

I often use the Gams utility gdxxrw to write the results of my model simulations to Excel. In the testing phase, if you don’t know some nice tricks, this means a lot of closing and opening Excel: If the result file is open in excel, you get an error, when you try to write results to the Excel file, so you have to close Excel first and rerun your simulation. After writing the results to Excel you have to reopen the file again. Lots of keystrokes…
However, gdxxrw lets you reduce the number of strokes, by using the gdxxrw utility
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