Barcode Studio

Spreadsheet

Spreadsheet format

Four columns, in any order — header wording is flexible:

  • Product Name
  • Single Box — 13-digit EAN-13, including check digit
  • Outer — 14-digit ITF-14, including check digit
  • Master — 14-digit ITF-14, including check digit

Format the code columns as Text in Excel so leading zeros aren’t stripped. Every check digit is verified — rows that don’t check out are flagged instead of silently producing a wrong barcode.