Launch Microsoft Office Excel 2007 and open the spreadsheet that you wish to save in CSV format. Use the "Ctrl-O" keyboard shortcut to open the file faster. Click the Office button in the top left ...

Go to the File Types tab, scroll down to Microsoft Excel Worksheet (.xls not .csv) and click Advanced. Uncheck 'Browse in same window' (or 'Open Web documents' in place) and OK.

You can convert JSON files to Microsoft Excel CSV file formats using this hidden built-in feature. We show you how to do it.