It sounds like you would just have had to delete all empty rows in excel before saving and uploading the file. You should try to remove blank rows and try to upload the document again to Eloqua.
Let me know if that works. Otherwise, you could use a CSV file instead which are easier to read and edit manually.
Linus Lundevall Chief Data Officer infunnel.se Rosenlundsgatan 40 • S11853 Stockholm • Sweden email@example.com • +46 7077 906 96• Infunnel.se
I've had issues with excel files in Eloqua. I would suggest exporting it as a CSV.