Is there a benefit to Insert - Object - Excel
vs.
Copying the chart in Excel and Paste Special w/ link in PPT?
When would you use each of these methods?
That's two questions, really. To add stuff from other programs into your PPT
presentation, you can do it via Insert Object or Copy/Paste or
Copy/Paste/Special. Either way, you can generally choose to link or not (and
if you choose not, you get an embedded object).
I'd almost never use Insert Object because it gives you little or no control
over what appears in your presentation. You choose the file, and Excel's left
to decide what bit of the file to show.
Instead, I'd open the file in Excel, select and copy the part I want to display
in PPT and then Copy/Paste Special, as Excel Worksheet or Chart object.
That leads to the Link or Embed decision, which pans out pretty much as Glen
describes it. The only thing I'd add is that if you embed, you get the whole
Excel file dropped into your PPT, even if you only copy/paste a single cell.
And the whole Excel file again for each add'l embed you do. That can pork up
your PPTs right quick (and may represent a security risk ... if you're not
careful, you could give away more than you think).