title: Excel Charts name field auto edit
body: <p>I have a .ppt linked to a .xls on some charts. Looking at the path of the links, some charts are named as XPTO-1, however the name field on excel is just XPTO. Why is excel adding "-1" tag?I don't have any chart with repeated name.
  This happens on 2003 version and 2007.
  Thanks</p>