Le but est effectivement de parler l'interopérabilité avec des applications tierces, mais dans le but d'être interopérable avec MS Office. C'est marqué sur le site ECMA clairement :
"OpenXML was designed from the start to be capable of faithfully representing the pre-existing corpus of word-processing documents, presentations, and spreadsheets that are encoded in binary formats defined by Microsoft Corporation. The standardization process consisted of mirroring in XML the capabilities required to represent the existing corpus, extending them, providing detailed documentation, and enabling interoperability." http://www.ecma-international.org/news/TC45_current_work/Ope(...)
[^] # Re: Effectivement on est pas vendredi
Posté par TImaniac (site web personnel) . En réponse au journal Oui je sais, on est pas Vendredi. Évalué à 1.
"OpenXML was designed from the start to be capable of faithfully representing the pre-existing corpus of word-processing documents, presentations, and spreadsheets that are encoded in binary formats defined by Microsoft Corporation. The standardization process consisted of mirroring in XML the capabilities required to represent the existing corpus, extending them, providing detailed documentation, and enabling interoperability."
http://www.ecma-international.org/news/TC45_current_work/Ope(...)