One barcode per line. Columns: UPC, Product Name, SKU, Price (comma or tab separated)

81020542083, EWWS x GOTHAM FC TEE, TGX10005-XL, 45.00
04900000530, CLASSIC LOGO TEE, CLT-2001-MD, 35.00

Search by Internal SKU to pull Customer SKU and UPC codes from the SKU Log