title: how can i remove every thing before ":" string in notepad++?
body: <p>I have a file like this in notepad++</p>
  
  <blockquote>
    <p>n1:n1:n1<br>
    n1:n1:n2<br>
    n1:n1:n3  </p>
  </blockquote>
  
  <p>i want to delete everything before the first ":" including the ":" itself<br>
  and be like this      </p>
  
  <blockquote>
    <p>n1:n1<br>
    n1:n2<br>
    n1:n3 </p>
  </blockquote>
  
  <p>and thanks.. 
  hope i was clear enough in my explanation of my problem</p>
  
  <p>Ken White : 
  thanks but the problem is my file have over 10k lines and the first "n1" changes to "n2" after about 1000 lines
  and then it become "o1" instead of "n1"
  i want to delelte every thing before the first ":"  </p>