Describes the cause and action for error messages.
Error Message(English)：
unable to delete a sheet
Unable to delete sheet from excel and it even gives no error using ...
https://stackoverflow.com/questions/6839708/unable-to-delete-sheet-from-excel-and-it-even-gives-no-e・・・
Why isn't my worksheet deleting in Excel 2016?
https://stackoverflow.com/questions/45554191/why-isnt-my-worksheet-deleting-in-excel-2016
Unable to delete a worksheet using EPPlus
https://stackoverflow.com/questions/22415693/unable-to-delete-a-worksheet-using-epplus
Delete sheet in excel that I can't access
https://stackoverflow.com/questions/43546304/delete-sheet-in-excel-that-i-cant-access
Prevent user from deleting a particular sheet
https://stackoverflow.com/questions/23645870/prevent-user-from-deleting-a-particular-sheet
[Solved] unable to delete or add worksheets in an Excel ...
https://www.computing.net/answers/office/unable-to-delete-or-add-worksheets-in-an-excel-spreadsheet/・・・
Insert or delete a worksheet - Excel - Office Support - Office 365
https://support.office.com/en-ie/article/insert-or-delete-a-worksheet-19d3d21e-a3b3-4e13-a422-d1f43f・・・
{RESOLVED} Excel: Can't Delete Worksheet | Tech Support Guy
https://forums.techguy.org/threads/resolved-excel-cant-delete-worksheet.51280/
Excel 2007 - Deleting a Worksheet - YouTube
https://www.youtube.com/watch?v=W3kJytD2Fhs