Do you believe in walking on water?
Sorry to start that way, but looking through devis, invoices and sundry other stuff with regard to work on our house, installations under warranty and so on I think that it is unlikely we found two even remotely identical thus hinting at any kind of format. That includes from one person. I use artisans particularly because we have obviously used many of them over time, plus things like the boiler and solar panels are separately invoiced with the thing installed and labour, etc.
As far as our own invoices go, cannot talk for herself, but I do as I have always done with only the addition of my SIRET to the electronic (but that can clearly be printed out) version. If it is itemised for any reason when I have to do working time, travel, accommodation, VAT and anything else separately then I simply attach an EXCEL spreadsheet. I have had one year's bookkeeping and all of the associated documents called in one year only by RAM and the the tax people, which in both cases I took in myself. I am cautious enough to include all contracts and draw attention to those that say on them 'invoice free' which is the case for fixed fee contracts. All are also in English which is the language used in the sector I work in for business purposes, French only if work is done in a Francophone country. They accepted that. My OH uses the format she has always used but did originally to business studies, including bookkeeping, before going to university, however that is a very tightly structured Swiss format that nobody dares deviate from. She has had to present her paperwork twice with no questions asked. Apart from her own stuff, she has very similar to me with 90% of it in English, the rest Spanish but no French. No problems.
Anyway, back to why I referred to the many artisans' paperwork. Because they are so inconsistent from something scribbled down with a biro on a standard duplicate/triplicate type pad through to something that all but tells you when the artisan was born and where plus umpteen other details that seem totally superficial, then comparing getting a standard version is truly comparable to believing in walking on water.