Check if the
.sdlxliff file is not created with an older version of the
Trados Studio Microsoft Word file type (e.g. the
.sdlxliff file from the Sample Project might give you this error).
In the
Editor view, go to the
View tab and click on
Tag ID to see the filter with which the file was created. Double-check that with the information from
File > Options > File Types, to see what the latest filters are. For
Word, latest filter is
WordprocessingML v.2.
The
Preview functionality cannot use the older file type which no longer exists on the current system, to create the preview.
The solution would be to re-create the
.sdlxliff file in
Trados Studio, using the latest version of the
MS Word file type.