Through help of Michelle (Thank You!), I was able to determine some of my Excel cells had bad data and strange coding within, that was not all visable. In deleting some major columns I was able to get the Bulk Inventory Upload completed.
However....
I still have many hours of individual AD updating to do on several hundred product entries, to ADD back several major columns one-by-one.
On the Bulk Edit Menu for all Edit Page items, it would be nice to include the lower Edit window items that ARE NOT available to us, to include Product Summary, Description, More Details, HTML Head, Search Keywords. I could be saving alot of time if these items were added to a major bulk edit feature for all listings.
Still would like to see a better Inventory or Bulk Upload Inventory process, that doesn't get technical in .tsv, etc. Something simple like from the Excel format?