You can insert or generate the data for the CSV file in Microsoft Office Excel 2007 and then save the file in CSV format. CSV files outputted by Excel 2007 can be used in any program that can read ...

Open the XLS file you wish to convert in Excel. Click "File," then "Save As." Select "CSV (comma delimited)" from the "Format" drop-down menu in the save dialog that appears, and click "Save." ...

If you need to convert that file from CSV to JSON, you can do that with the csvjson command like so: csvjson clients.csv > clients.json Csvkit has a couple of other handy tricks up its sleeve.

You can do this in Excel by creating a simple spreadsheet and then choosing to save it as a CSV file. I made a little list of exercises, which looks like so: ...