Describes the cause and action for error messages.
Error Message(English)：
microsoft excel too many columns
Delete Blank Rows and Columns in Excel with a Few Clicks - Lifehacker
https://lifehacker.com/delete-blank-rows-and-columns-in-excel-with-a-few-click-1678114361
How to clean up an Excel workbook so that it uses ... - Microsoft Support
https://support.microsoft.com/en-gb/help/3070372/how-to-clean-up-an-excel-workbook-so-that-it-uses-l・・・
How many is too many columns (safely) in Excel? - Stack Overflow
https://stackoverflow.com/questions/9424630/how-many-is-too-many-columns-safely-in-excel
Microsoft Excel Can't insert new cells
https://stackoverflow.com/questions/40025679/microsoft-excel-cant-insert-new-cells
SSIS Excel Destination - too many fields defined
https://stackoverflow.com/questions/25849995/ssis-excel-destination-too-many-fields-defined
Opening Excel with many columns
https://stackoverflow.com/questions/12273290/opening-excel-with-many-columns
windows 7 - Why does my excel document have 960,000 empty rows ...
https://superuser.com/questions/432896/why-does-my-excel-document-have-960-000-empty-rows
Excel specifications and limits - Excel - Microsoft Office Support
https://support.office.com/en-ie/article/excel-specifications-and-limits-1672b34d-7043-467e-8e27-269・・・
How to delete multiple empty columns quickly in Excel? - ExtendOffice
https://www.extendoffice.com/documents/excel/823-excel-delete-multiple-empty-columns.html