I guess the error message is right. You can't reuse a format for a nonmerged that you have already used on a merged cell.

I guess you need to declare a second format for unmerged cells.

In reply to Re: How to merge cells using Spreadsheet::WriteExcel using Merge_range function ? by Corion
in thread How to merge cells using Spreadsheet::WriteExcel using Merge_range function ? by ungalnanban

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