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How to prevent entering values with spaces in Excel?

When you enter values in worksheet cells, you are accustomed to tap spaces among the data. But, sometimes, you are not allowed to enter spaces between them. Are you suffered with this problem? Today, I will talk about how to prevent entering values with spaces in Excel.

Prevent entering values with spaces with Data Validation

arrow blue right bubble Prevent entering values with spaces with Data Validation

To solve this task, you can use Data Validation with a simple formula, follow these steps to finish it.

1. Select a column that you need to prevent spaces when you enter data.

2. Click Data > Data Validation > Data Validation, see screenshot:


3. In the Data Validation dialog box, click Settings tab, and choose Custom from the Allow drop down list, then enter this formula =NOT(ISNUMBER(SEARCH(" ",A1))) into the Formula text box. See screenshot:

Note: A1 indicates the first cell of your selected column.


4. After finishing the settings, click OK to close this dialog. And now, when you input spaces within your data in the column which you have specified, you will get the following warning message.


Related articles:

How to prevent duplicate entries in a column in Excel?

How to prevent special characters entering in Excel?

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