How to find out empty, blank cells or rows in LibreOffice Calc


Find out empty rows, cells
Find out empty rows, cells

This tutorial shows three ways in which you can find out all blank cells, empty rows in a Calc sheet.

When you work with a large spreadsheet with huge volume of data, it is very difficult to find out the empty cells. Let’s find out how you can identify them.

We have a table below of data in LibreOffice Calc. And it contains some empty cells in various rows/columns.

A table of data with empty cells
A table of data with empty cells

Method 1

We will use the built-in ISBLANK function to check whether a cell is empty or not. This function takes a cell as an argument and returns TRUE if a cell is empty. Otherwise, returns FALSE.

=ISBLANK(A1): Returns TRUE if A1 is blank. 
Test using ISBLANK Function
Test using ISBLANK Function

In the example enter the above formula and drag it down till your last data item.


You can see the cells having no data in column F returned TRUE.

This is the most basic way you can check. Let’s see how you can check with the IF statement.

Method 2

The similar result you can achieve by using the IF function. You can check for empty string check which is "". If the condition is true, you can return any text you want as per your needs.


Method 3

While the above steps are good, it is always worth to try out a way to highlight the empty cells or rows or columns with some colors. That makes very easy for data analysis. And you can do it using conditional formatting in LibreOffice Calc.

To do that, select from menu: Format -> Conditional -> Condition.

In the conditional formatting window, select the entire range of data in Cell range section that you want to highlight for empty cells. Then from the Condition 1 drop-down, select Formula is and enter =ISBLANK(A1) in the formula.

Note that even if you selected the entire range, you can specify only one cell in the condition, LibreOffice calc will take care of the rest of the cell.

Now select the style which highlights the empty cells i.e. satisfy the above formula.


Once you do that, press OK. You can see the blank cells are highlighted with the Red style which we have selected.



ISBLANK function reference.

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arthur brogard

I just ran into a hassle with this. Did you know Isblank() returns False if there’s a formula in there?

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