olemus
rakendusele omane esmane failivorming, mida ta kasutab
faili loomisel, redigeerimisel või avaldamisel
=
the default file format that an application uses to create or save files

ülevaateid
https://www.techopedia.com/definition/5453/native-file-format

https://en.wikipedia.org/wiki/Native_and_foreign_format

https://goldfynch.com/blog/2019/01/19/ediscovery-native-files-vs-pdfs-which-should-your-small-law-firm-use-for-productions.html

https://www.meridiandiscovery.com/articles/misconceptions-about-native-file-productions/