Which of these keys are used in Ms Excel to copy value from above cell?

Ctrl + ”: This keyboard shortcut is a quick way to copy the value from the cell directly above the active cell. The double quotation mark (") tells Excel to paste the value and not the formatting of the cell above.

Ctrl + E: This keyboard shortcut doesn't have a predefined function for copying in Excel.

Ctrl + C: This is the standard shortcut for copying any selection in Excel, but it wouldn't be specific to the cell above.

Ctrl + D: This shortcut is typically used to fill down the contents of the active cell to the cells below it in the same column.

Therefore, if you want to quickly copy the value from the cell above without its formatting, Ctrl + ” is the most efficient option in Excel.