What action does 'Ctrl + Z' perform in Excel?

The action performed by 'Ctrl + Z' in Excel is to undo the last action taken. This is a fundamental feature found in many software applications, allowing users to easily revert changes that they may not want to keep. For example, if you accidentally delete a cell or make an unwanted formatting change, pressing 'Ctrl + Z' will immediately reverse that action, restoring the data or formatting to its previous state.

This functionality is particularly useful for error correction and streamlining workflow, as it allows users to quickly fix mistakes without needing to manually redo or search for prior values or formats. Understanding this shortcut is essential for effectively managing tasks in Excel, as it enhances productivity and minimizes frustration.