I haven't done this myself recently..it's been a while. I did it many years ago using the windows api calls or something like that. It was with Win3.11, if that gives you any idea of how long it's been. It was very easy.
Recently I had a friend do it for me, and he formatted it with html and put it on the clipboard. It pasted perfectly formatted into excel. That may not be product worthy, though, if you need a "click to appear in excel" solution...but you could do that with autohotkey. It will let you save the clipboard, get it with the new data, paste it, then restore the clipboard.
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