MS Word 2013 and MS Excel 2013 are supported from OPA 10.4.4. There's no special configuration or patch, it should just be a matter of installing the new release (Oracle Policy Modeling 10.4.4). When upgrading OPA rulebases, the MS templates should get updated automatically. However, sometimes they need to be forced through manually: http://docs.oracle.com/html/E48373_01/toc.htm#Projects and files/Update_OPM_templates.htm
I'm not familiar with Office 365, but if it's not mentioned in the system requirements (it isn't), then it probably isn't supported.
The OPA 10.4.4 System Requirements are available here: http://www.oracle.com/technetwork/apps-tech/policy-automation/documentation/opasystemrequirements10-4-4-1991511.pdf
Does 10.4.4 support the Office XML formats (docx, xlsx)? Or is it still binary only?