title: start search and replace after the nth comma using regex using notepad++
body: <p>I have a comma delimited txt file, Is there a way regex can do search and replace ONLY after the nth comma, say, after 3rd comma
  so:</p>
  
  <p><code>data1,data2,data3,regex,can,start,search,and,replace,here</code></p>
  
  <p>Actually I need to perform this regex expresion</p>
  
  <p>Find: <code>,key1,[^,]*</code></p>
  
  <p>Replace: <code>,0,0</code></p>
  
  <p>which I learned from <a href="https://stackoverflow.com/questions/25020757/change-the-value-of-the-key-then-delete-the-key-on-comma-delimited-csv-using-re">Change the value of the key, then delete the key on comma delimited CSV using regex</a></p>
  
  <p>Hope I can do the same operation ONLY after the nth comma</p>
  
  <p>Thanks!</p>