title: Macro insert and change picture in header all sheets excel
body: <p>I am not a professional, but I am trying to find a way where a user of an excel workbook I created can select and insert a picture (company logo) in left header of all sheets in an excel workbook.
  If possible it should be possible to change the picture also, i.e., remove the current picture (if any) and insert a new one. I have searched and found some solutions using macro, but have not found a complete solution to what I am trying to achieve. Appreciate any help.</p>