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Learn to work with TXT, CSV, and JSON files with this free 20-page eBook.

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    TXT files are used for all sorts of files, from actual text such as novels and literary works, to structured data including numerical and string data.


    CSV files are frequently used for storing comma-separated tabular structured data, similar to what you would get from a spreadsheet.


    JSON files were made popular by the JavaScript language. They are a popular data-interchange format.