Converting empty cells means that they will be formatted as text if you enter data into them in the future. Navigate to the "Number" group within the "Home" tab in Excel.

You can follow any one of these methods below to convert numbers stored as text to numbers in Microsoft Excel: Using the Text to column button Using Value function Changing the format Use Paste ...

Excel's Convert Text to Columns Wizard works only on one column at a time. If the data is in the first column, for example, click on the letter "A" above the column to select the entire column.