2c17f66b_1_9_m54_snapshot__Feature_title
[TaskId] i32622 [Spec. abstract] OpenOffice.org (OOo) 1.1 and StarOffice (SO) 8 are using the new OASIS Open Office XML File Format as their default file format. The OASIS Open Office XML File Format has been development and standardized by the OASIS Open Office XML Format Technical Committee (TC). Support of the OASIS Open Office XML Format has also been announced by Koffice. New extensions are used to be able to divide the new from the old format and to prevent loading file with new format in an earlier released OOo 1.1. The new file names are the same regardless of the product vendor. So OOo and SO files are called the same. [Spec. link] speclink [Feature title] 
File format Names, Extensions and MIME types
1.9 m54 snapshot