Steps to reproduce:
1. Open the file in LibreOffice
2. Click File -> Save As (Microsoft Word 2007/2010 (.docx))
3. Open saved file in MS Office 2010.
File corrupt dialog is shown
File should open without any error.
Operating System: All
Version: 184.108.40.206.alpha0+ Master
*** This bug has been marked as a duplicate of bug 78432 ***