Best way to represent null and empty data in an excel file

1. How do you represent null values in Excel?
2. How do I represent null in a csv file?
3. How do I replace blank values with null in Excel?

How do you represent null values in Excel?

ISBLANK Function to Find NULL Value in Excel

In Excel, we have an ISBLANK function, which can find the blank cells in the worksheet. First, let us look at the syntax of the ISBLANK function. It returns the output “true” if the cell is empty (blank) or “false” if the cell is not empty.

How do I represent null in a csv file?

In CSV files, a NULL value is typically represented by two successive delimiters (e.g. ,, ) to indicate that the field contains no data; however, you can use string values to denote NULL (e.g. null ) or any unique string.

How do I replace blank values with null in Excel?

Press Ctrl + H to display the Find & Replace dialog box. Move to the Replace tab in the dialog. Leave the Find what field blank and enter the necessary value in the Replace with text box. Click Replace All.