A feature which will enable you to break out first and last names into two columns is: text to columns.
A worksheet is also referred to as a spreadsheet and it can be defined as a file (document) which comprises cells that are arranged in a tabulated format (rows and columns), so that they can be used for formatting, arranging, analyzing, storing, calculating and sorting data on computer systems.
In Computer technology, text to columns is a feature of spreadsheet applications which will enable users to break out first and last names into two columns rather than having both the first and last name in one cell.
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