Meta bug about single XML document – also known as Flat XML or Uncompressed XML Files. Single OpenDocument XML files are not widely used,[citation needed] they are also unsupported on some office software which claims to support ODF (Microsoft Office applications version 2007 to 2013 do not recognize them). Filename extensions for a single OpenDocument XML documents are not defined in the OpenDocument technical specification, but commonly used are .xml, .fodt,[1][2] .fods, ... etc. (cited from https://en.m.wikipedia.org/wiki/OpenDocument_technical_specification)