OOXML opravdu neni nic vic nez hromada sracek
http://www.pcworld.com/article/136711/article.html
http://ooxmlisdefectivebydesign.blogspot.cz/
https://brattahlid.wordpress.com/2012/05/08/is-docx-really-an-open-standard/
http://www.linuxveda.com/2014/11/29/never-use-microsofts-ooxml-pseudo-standard-format/
Nepletu, support MS je taky hromada sracek :)