How to build dynamic columns using a Splunk search for data from an indexed CSV file without headers?

[kotig]

Our application has CSV log files and the CSV is indexed in Splunk, but our CSV does not have any column headers. How do I build a search to read the below data and create field names myself with a search?

Below is our Test Data in the CSV file:
Tester, test, testing
coder, code, coding
manger, lead, leader

I wanted to create a table with field1, field2, field3 where the data from each column goes correctly into each field.

[woodcock]

Like this:

props.conf:

[YourSourcetypeHere]
TRANSFORMS-ThisNameIsArbitraryButShouldBeUnique = commalist

transforms.conf:

[commalist]
DELIMS = ","
FIELDS = field1, field2, field3