I'd rather not put those files on a public bug tracker. They are all bills to my customers. However, I created a similar template with LibreOffice 3.4.5 on Windows and found out that it couln't be opened either. Template is attached. Apport gave a message too, so I filed it as Bug #936829. I'm not sure yet if the bugs are related because apport doesn't react every time I try to open an .odt. (or .ott), but I'm pretty sure it is the same bug.
I'd rather not put those files on a public bug tracker. They are all bills to my customers. However, I created a similar template with LibreOffice 3.4.5 on Windows and found out that it couln't be opened either. Template is attached. Apport gave a message too, so I filed it as Bug #936829. I'm not sure yet if the bugs are related because apport doesn't react every time I try to open an .odt. (or .ott), but I'm pretty sure it is the same bug.