You should start a new question. I don't think this fits into casual chit chat.ok.. here are 3 different providers... the last one (is xml - our MYDATA Provider / old invoicing for our country)
the first two are ...they are different company providers..
How easy is automatically match the fields/elements with the right values ?
have in mind this is 1 from 30 (invoices-receipts forms that need) and the providers are about 30...