But how to reset Excel to default options?
How to Reset Excel to Default tweaks Windows 10
Method 1.
Press theWindows + Rkey combination to wake up the run window.
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Then typeregeditin the text box and pressEnter.
When you see the User Account Control window, select theYesoption to continue.
In the left panel, right-click theOptionskey and clickDeletefrom the context menu.

In the Confirm Key Delete window, select theYesoption to complete this task.
What if modified registry controls keep reverting?
Read this post to see how to prevent registry key from being reverted automatically.
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Method 2.
Likewise, you’ve got the option to also use it to reset Excel to default prefs.
Here are the major steps.

Step 1.Open Windows PowerShellby using the Windows search box.
Exit PowerShell and open an Excel file to check whether the Office program is restored to its default state.
Method 3.
Reinstall Office
The last way to restore Excel to its default prefs is to reinstall Office.
you could choose the preferred method to complete this task.
We are ready for help.