title: How to utilize date add function in Google spreadsheet?
body: <p>I believe the issue I am having now should be much easier in MS Excel. However, since my company uses Google Spreadsheet so I have to figure out a way.</p>
  
  <p>Basically, I have a cell that contains a date value like "12/19/11", and I have another cell contains a value like "DT 30". The task assigned to me is to add the value 30(days) to the date, so the result should be "1/19/2012".</p>
  
  <p>I did some trying in Google Spreadsheet, I have two questions. The first is to how to extract the numeric value "30" out of the string "DT 30", the second question is that, there seems to be no date add function built in Google Docs.</p>
  
  <p>Could any experts offer some suggestions? </p>