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There is not really an actual error besides the fact that many of those tasks above you have to do manually! Who likes to copy and paste information into Excel and stays focused on doing that (without error) for hundreds of elements?! Of course, errors can creep in here by doing mistakes in the manual steps. As this is too much of an effort you decide to go for the "supposedly" easiest way, by taking nothing/everything/doing nothing at all.
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