Comma Separating Tool allows you to convert a list of values in a spreadsheet into a comma-separated list; or allow you to take the data you found from the CSV you bought it in, and make quick work of loading it into an array.

A delimiter is a sequence of one or more characters used to specify the boundary between separate, independent regions in plain text or other data streams. An example of a delimiter is the comma character, which acts as a field delimiter in a sequence of comma-separated values.