Describes the cause and action for error messages.
Error Message(English)：
not able to drag cells
can not drag cell contents fro one cell to multiple cells ...
https://answers.microsoft.com/en-us/msoffice/forum/msoffice_excel-mso_other/can-not-drag-cell-conten・・・
Display or hide the fill handle - Excel - Office Support - Office 365
https://support.office.com/en-ie/article/display-or-hide-the-fill-handle-80918200-9ae9-4615-93c9-13d・・・
Drag down option in excel is not working - YouTube
https://www.youtube.com/watch?v=VAPHwciwpbw
https://www.youtube.com/watch?v=VAPHwciwpbw
Solution for Excel autofill drag not working issue - YouTube
https://www.youtube.com/watch?v=OnnKOplGmjo
https://www.youtube.com/watch?v=OnnKOplGmjo
how to enable drag formula in excel 2007 - YouTube
https://www.youtube.com/watch?v=MVTy3uogxmk
https://www.youtube.com/watch?v=MVTy3uogxmk
Enable to Disable Cell drag and Drop option in Excel and using VBA ...
http://learnexcelmacro.com/wp/2012/07/cell-drag-and-drop-option-in-excel/