The Edit Menu

Edit → Undo (Ctrl+Z)

Undo the last action.

Edit → Redo (Ctrl+Shift+Z)

Redo the last undone action.

Edit → Cut (Ctrl+X)

Put selected item(s) into the clipboard and remove them from the original location. If you then do a Paste the item(s) will be inserted at the new location.

Edit → Copy (Ctrl+C)

Copy selected item(s) to the clipboard.

Edit → Paste (Ctrl+V)

Paste item(s) from the clipboard to the selected cell(s).

Edit → Special Paste...

Special forms of Paste. See the sections Other Paste Modes and Arithmetic using Special Paste for more details.

Edit → Paste with Insertion

Move content of the paste area either to the right or down and paste item(s) from the clipboard to the selected cell(s).

Edit → Fill

Fills up the selected area with the values from the first item-set. All four directions are supported. Note that the term "item-set" describes the first set of values seen in the fill direction. If the fill direction is Left then the first item-set is the last column of the selection.

Edit → Find... (Ctrl+F)

Find cell containing given text.

Edit → Find Next (F3)

Find the next cell containing given text.

Edit → Find Previous (Shift+F3)

Find the previous cell containing given text.

Edit → Replace... (Ctrl+R)

Find and replace given text in cell(s).

Edit → Clear

Clear All or Contents, Comment, Conditional Styles, Link or Validity from selected cell(s).

Edit → Delete

Delete Cells, Columns, Rows or Sheet.

Edit → Modify Cell (F2)

To modify selected cell in-situ.