How to Open Multiple CSV Files in One Excel Spreadsheet. The CSV file extension appears on text documents that contain comma-separated values. Like spreadsheet data, each line in a CSV file ...

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

CSV files create columns of data from a variety of sources, such as address books and GPS location lists, and VLOOKUP enables your business to analyze these sources.