If you think I missed an important concept for how to optimize Excel VBA performance, or if you’ve got a valuable comment or link to share, please feel free to post here so everyone can benefit. Turn Off Everything But the Essentials While Your Code is Running This optimization explicitly turns off Excel functionality you don’t need to happen (over and over and over) while your code runs.Note that in the code sample below we grab the current state of these properties, turn them off, and then restore them at the end of code execution. Display Page Breaks = False ‘note this is a sheet-level setting ‘: This setting tells Excel to not redraw the screen while False.

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When an Excel VBA routine changes from one worksheet to another at high speed, you get screen flash.

It's not a big deal while you are testing your code, in fact it lets you know your macros working, but it does degrade the user experience.

Let me show you what happens when I have a macro that has, in this case a bunch of unnecessary switches from worksheet to worksheet, but I wanted to show you what screen flicker looks like.

If I type in my name and my e-mail and, "Again, more cinnamon," and click Add Suggestion, which runs the macro that copies this data back to Sheet3, you see that you got screen flicker.

Now the macro worked correctly, but again the user experience isn't all it could be.

There is a way to prevent screen from flashing while Excel runs your code and switches from worksheet to worksheet.

I want to start off this post by thanking everyone who sent in their examples in response to my January request.

It is incredibly helpful to be able to look at what you all are doing with Excel!

Not only did I see a huge variety in how Excel is being used, you also pointed out various tips and tricks for writing fast VBA code in Excel.

In this post I’m going to share with you the most important performance tips I know about.

There are tons of sites, pages, and people who are experts as well on this subject, have performed their own tests, and shared their results and ideas.