Try forcing the doc to open in libre office again else try with nano and see if there are any data on the document type. Ms office do not open open document files you can change the default save types in libre to docx files <div class="gmail_quote">On 29 Apr 2015 12:32, "Jan Greeff" <<a href="mailto:jan@verslank.net">jan@verslank.net</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello all, is there some advice out there for this one, please? My friend's laptop, running on Ubuntu 14.04, has saved a Libre Office document in .xcu format. My first problem is to recover the document. The second, more serious problem seems to be to prevent a recurrence. This is the feedback I received when searching for the document via Searchmonkey: /home/jan/Desktop/kobus/.config/libreoffice/4/user/registrymodifications.xcu I found this site, where it seems to indicate that there is a problem with Libre Office and Windows/Microsoft: <a href="http://community.spiceworks.com/topic/217331-okay-libre-office-has-been-deployed-can-i-make-everyone-save-as-office" target="_blank">http://community.spiceworks.com/topic/217331-okay-libre-office-has-been-deployed-can-i-make-everyone-save-as-office</a> Where do I go from here? Many thanks, Jan -- ubuntu-za mailing list <a href="mailto:ubuntu-za@lists.ubuntu.com" target="_blank">ubuntu-za@lists.ubuntu.com</a> <a href="https://lists.ubuntu.com/mailman/listinfo/ubuntu-za" target="_blank">https://lists.ubuntu.com/mailman/listinfo/ubuntu-za</a> </blockquote></div>