Flash fill is a good feature which introduced in Excel 2013.
It helps you filling out the data by observing and following the data pattern. For example, if you have below data in column A:-
and you wish to separate the first name and last name in column B and column C.
the moment you type Jennifer in column B, FLASH fill will show all first name as a list (like Britney, Mike, Sachin, Brian) and you can simply choose to continue. Similarly when you type Lopez in column C, FLASH fill will show all the last names instantly.
So this is very useful features which helps you to fill data, even if the data need to be separated (Text - to - columns) before entering - like its mentioned above.
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