I should clarify, this issue is not that there are not 2 commas that are together.
The issue is: on some rows the Logon ID (15th column) is entered in a 'Lastname, Firstname' format. When I open the csv file, I can see that the 'user entered comma' between 'Lastname' and 'Firstname' pushes the 'Firstname' and remaining data fields in the row 1 column to the right. This is why I have to find and remove that extra comma when is appears - and it appears randomly in about 1/3 of all my files I am required to work with.