Introduction
Reading and writing cell values means looking at the data in a cell and putting new data into a cell. This helps you keep your spreadsheet up to date and use the data for calculations or reports.
When you want to enter a list of names or numbers into your spreadsheet.
When you need to update a price or quantity in your sales sheet.
When you want to check the value in a cell before using it in a formula.
When you want to copy data from one cell to another.
When you want to type a date or text into a specific cell.