convert excel to text file

Hello...

I have played around with existing excel file, but am confused how I would do the following:

My app needs to be able to create a new excel file with predefined column names like FirstName LastName.. so on. When excel file is created the user should be able to input values into the two columns, example John Doe then be able to save it wherever. My app then should be able to extract all populated cells and output them line by line to a text file. So the output of my text file would be Doe, John

Any good code and explaination much appreciated for this novice :)

[n]Shaikh
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