http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Manufacturing and international trade report
Each volume accompanied by a Concordance of export/import products and their NAICS (North American Industry Classification System) codes (in Microsoft Excel (XLS) format).
Each file provided in Adobe Acrobat (PDF) and Microsoft Excel (XLS) formats.