What is the best software for report writing?

Here are some ways via which you could undo in Apple Numbers:

• Click on Edit and then choose Undo
• Press Cmd + Z from the keyboard
• Tap or Swipe on the screen using three fingers.
   

Spreadsheet software offers versatile data manipulation and calculation capabilities, while financial planning software is specialized for financial analysis and forecasting.

The purpose of lookup tables in spreadsheet software in Microsoft Excel is that it enables end users to recover information from one location to another in a table.

To recover corrupted Excel files, follow the steps given below:

• Launch Microsoft Excel
• Tap on File > Open
• Choose the Corrupted file
• Tap on the Arrow icon next to Open Button
• Click on the ‘Open and Repair’ button
• Tap the Repair button 
• In case the process of repairing fails, click Extract Data and excel restores the values and formulas associated with that file.

To uncorrupt an Excel file, follow the steps given below:

• Go to the place where you have saved the faulty file
• Right click on the file and then click ‘Open and Repair’ option
• Select Repair and then tap Close.