title: PowerShell : compare 2 excel files or 2 sheets
body: <p>I have to make a script which can compare 2 excel files or sheets and if one of the cells isn't de the same it tells me which one it is but i don't know how to do this, I watched another situation like this one but i didn't manage to do it can you help me ?
  my files are test1.csv and test2.csv </p>