Data Validation - Basics

To prevent incorrect data posting in specific cells we use Data Validation. 
if you created a worksheet that will be used by others, you need to ensure that only correct data that matches with requirements is entered. 

For example: between (10 and 20), or only specific text (Mr., Mrs, or Miss), etc.

Following are some basic data validations:

Whole Number:This can be used to restrict whole number data entry as per defined validation only.
For example you can prevent data which is out of a number range. See below animation.

If you understand the above, you can explore following more options to validate the data entery:

* Decimal
* Date
* Time
* Text Length
* List   (multi-choice drop-down list.  Items separated with comma)

Following advanced options and will be posted seperately ...

* Custom

For more detail, write us ...