Describes the cause and action for error messages.
Error Message(English)：
is not allowing me to merge cells
What are the reasons why you could not merge cells in Excel? How ...
https://www.quora.com/What-are-the-reasons-why-you-could-not-merge-cells-in-Excel-How-can-this-issue・・・
How to merge cells in a range formatted as table in Excel? - ExtendOffice
https://www.extendoffice.com/documents/excel/4488-excel-merge-cells-in-table.html
Merge and unmerge cells - Office Support
https://support.office.com/en-us/article/merge-and-unmerge-cells-5cbd15d5-9375-4540-907f-c673a93fced・・・
Excel - How to Merge Cells
https://kb.wisc.edu/page.php?id=939
microsoft word 2010 - Can't merge table cells - Merge Cells button ...
https://superuser.com/questions/418525/cant-merge-table-cells-merge-cells-button-greyed-out
Excel - How do I merge cells within a range that is formatted as a ...
https://excelatwork.co.nz/2014/04/16/merge-table-cells/
How to Merge Cells in Excel in 2019 (+ Examples and Screenshots)
https://learn.g2crowd.com/how-to-merge-cells-in-excel
How to Merge Cells in Excel the Right Way - Trump Excel
https://trumpexcel.com/how-to-merge-cells-in-excel/
How to add and delete, lock, format, merge and split cells in Excel ...
https://www.techadvisor.co.uk/how-to/software/how-add-delete-lock-format-merge-split-cells-in-excel-・・・