1. Click on the Data menu.
2. Navigate to the Data Cleaning tool, and from the drop down choose Fill Missing Values
3. In the data cleaning tab, choose a column for the tool to pick up the empty cells from.
4. Once the tool is done picking up empty cells, please select one of the three options provided to fill the cells with a value that you want.
5. You can either choose to fill all the missing values with a specific value, or fill it with the content in the previous cell or you can choose to fill the cells with the most occurred value in the column.