Microsoft Excel has an import wizard, but if you structure the text correctly, you can bypass the wizard altogether.

And while you can import CSV files into Excel and work with them there, it can get confusing—you have to keep track of which Excel features work in CSV files, and which do not.

Twitter used to provide CSV exports of your data, now it's all in machine-readable JSON. How can you use it in Excel?

From here, click File > Export to Google Spreadsheet. Google Docs will convert the CSV back into a spreadsheet and you'll be able to open it and work on it in no time.