A system that creates barcodes: http://www.barcodes4.me/apidocumentation
How can I use it in a table?
Or is there an easier way you can suggest?
It can be done with VBA,
Sample:
ActiveSheet.Range("D3").Parent.Pictures.Insert("http://www.barcodes4.me/barcode/c39/AnyValueYouWish.png")