Merge cells after copying a worksheet change original worksheet.
*Created originally on Bitbucket by [bonapart71 (Andrew Nikolayenkov)](https://bitbucket.org/%7Baf06d5c5-62d3-4fe0-b4b4-d069e8f38adc%7D/)* A small example: ``` #!python from openpyxl import Workbook wb = Workbook() ws1 = wb.active ws2 = wb.copy_worksheet(ws1) ws2.merge_cells('A1:C3') wb.save('test.xlsx') ``` In the file, you can see that the cells are merged in both sheets - ws1 and w2.
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