Thanks for posting your question here. We actually have tools available to upload listings from a spreadsheet in both Auctiva.com (for eBay) and Auctiva Commerce so it is not entirely clear which tool you are having trouble with but I hope to be able to point you at least in the direction of a solution.
If you wish to upload your inventory into Auctiva.com for the purpose of posting it to eBay, then you would need to make sure your file is saved in CSV or TSV format. If you are exporting the listings from Turbo Lister, you would want to choose "File Exchange Format (CSV File)" when you use their "Export Selected Items" option.
Our FAQ entry that goes over this feature is available on the following page of the Auctiva.com site: http://www.auctiva.com/help/fa...o-my-auctiva-account
On the other hand, if you wish to upload your inventory into Auctiva Commerce, your spreadsheet would need to be saved in TXT or TSV format.
Our FAQ entry that goes over this feature of Auctiva Commerce is available on the following page of our site: http://www.auctivacommerce.com...ulk-upload-inventory
If you are still unable to resolve the problem you are encountering with your files after going through this information, I recommend contacting our customer support team for further assistance using the appropriate link below:
Auctiva Commerce: http://support.auctivacommerce.com/