If you get #SPILL! error in Excel, check the error message associated and then follow these fixes to remove the #SPILL! error in Excel.

In such cases, they might prefer to remove or disable the green triangles and ignore the errors. How to remove Green Triangle in Excel ...

Install the Remove Duplicates add-on from the Google Workspace Marketplace. In your sheet, click Extensions, then Remove Duplicates, and choose: Find Duplicates or Uniques.