Full support isn't official yet, but you can safely rename your docx document into .zip, as you will notice, the actual content is stored into XML files: the DOCX format is very close to the now standard ODF (Open Document Format), and memoQ does support XML files.
If you want to work with file formats supported by SDL Trados but not supported by memoQ, you can do that through TagEditor's native format, TTX. However, to enable SDL Trados to export the file back to the original format you have to pre-segment the file and work on an already segmented TTX file.
To pre-segment the file you need to do the following:
Now import the pre-segmented TTX files into memoQ, and you can start working.
Note: memoQ 2.1 and later have full TTX support, but there is a workaround method to work on TTX files using memoQ 2.0.
