Hello,
I have always been able, using ubuntu, to open .odt files or indeed .docx files, using the Ubuntu Archive Manager. This can be quite useful to perform batch operations on metadata (making comments anonymous, for example, when a reviewer has forgotten to remove his/her information). Now, this no longer appears to be possible, with Ubuntu 18.04. I'm not sure if this is question for ubuntu or for OpenOffice, but any help in encouraging the Archive Manager to let me get at the xml files would be appreciated!
G. R.