title: How to run macros only the first time the excel file opens
body: <p>I have written some VBA code for my excel sheet. The thing is that I want it to run only once, i.e., when the user opens it for the first time.</p>
  <p>if opened for second time or more, I want the excel to open normally without running that VBA code. How to do it using VBA or is there any excel feature?</p>