The last time I had a problem with LibreOffice reformatting an important Word document, the issue were the fonts. In my case, installing the "wine-*-fonts-syste

The last time I had a problem with LibreOffice reformatting an important Word document, the issue were the fonts. In my case, installing the "wine-*-fonts-system" (times new roman, tahoma, wingdings) packages was enough to make LibreOffice format that document correctly; another option would have been to copy the original fonts from a Windows install.