Adding 30,000 listings

I did this without much problem a couple years back, but I'm having trouble this time.  I went directly to the file where the details of a business listing were, looked at the structure, and created my own file from 30,000 listings I have (using excell) I then uploaded it and everything worked.  Can you give me a brief destription on how I would go about this?

thanks

Quote · 31 Dec 2011
 
 
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