MS Excel EAN-13 Barcode Generator Add-In
http://www.barcodelib.com/excel_barcode/barcodes/ean13.html
Set the Barcode Type property to EAN 13 or EAN 13 +2 or EAN 13 +5. Set the Data property with the value to encode. Type is string. User should only provide 12 digits, and DO NOT include last digit checksum character. Valid Data Scope: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9; Valid Data Format: 12 digits. There are totally 13 digits in EAN-13 barcode, first 12 digits are barcode value, and last digit is the checksum digit, which is generated by barcode library automatically.
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