The uploaded file was saved in a format that could not be read. This error can be caused by uploading your file as an Excel spreadsheet instead of as a tab-delimited text file. Search on \"save file\" in seller Help for detailed instructions on saving the template file in tab-delimited format.
(Fatal) Your input file was saved in a format that cannot be read. Save the input file as a tab-delimited text file and not as an Excel spreadsheet. For detailed instructions about how to save the template as a tab-delimited text file, search the Seller Help for \"save file\".