Describes the cause and action for error messages.
Error Message(English)：
unable to remove styles
Delete ALL custom cell styles EXCEL - Super User
https://superuser.com/questions/1291085/delete-all-custom-cell-styles-excel
vba - Deleting unused Excel custom styles in ...
https://superuser.com/questions/1232028/deleting-unused-excel-custom-styles-in-bulk-how
Unable to change Excel cell font or shading colors.
https://superuser.com/questions/437346/unable-to-change-excel-cell-font-or-shading-colors
microsoft excel 2007 - How to easily remove ...
https://superuser.com/questions/192272/how-to-easily-remove-hyperlinks-from-multiple-cells
Table Formatting in Excel 2007: How do I ...
https://superuser.com/questions/135953/table-formatting-in-excel-2007-how-do-i-remove-it
Deleting Unwanted Styles (Microsoft Excel) - Excel Ribbon Tips
https://excelribbon.tips.net/T012259_Deleting_Unwanted_Styles.html
Deleting Unwanted Styles (Microsoft Excel) - Excel Tips - Tips.Net
https://excel.tips.net/T002135_Deleting_Unwanted_Styles.html
表示されたら、「が多すぎます形式」エラー メッセージを Excel で
https://support.microsoft.com/ja-jp/help/213904/you-receive-a-too-many-different-cell-formats-error-・・・
Delete styles in MS Excel - Excel and Access
https://www.excelandaccess.com/delete-styles-in-excel/