If you need to add a comma after the first word in each cell in Excel using the Replicate or Substitute function, read through this article.

How to Make a List of Excel Data Into Data Separated by Comma. Microsoft Excel 2010 stores data within cells, which are simply segregated pieces of the spreadsheet that Excel can then reference to ...

Is there anyway I can make it so if I copy and paste those comma separated list into it excel it automatically puts each thing into different fields.