Mr. Nitro,
Good morning!! Not sure if this is different from 2003 or not, but there are some tools that will help to speed up some calculations. For instance, at the start of your sub use this:
And at the end of your code use this:
What this does is turn off screen updating, which is what makes your screen flicker while the macro is running until the macro is finished and then the screen will update. It also turns off automatic calculation which means that the macro will not calculate the sheet every single time the macro adds something new to the sheet. Instead, it will wait until the macro is completely finished running, and then calculate the sheet. These two things should help a bit.
Dome
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