I got some documents write in very old word (*,doc)
they has some FieldDate components, with this field code, show in Word, as like one of their default templares for this type of field
dd' de 'MMMM' de 'yyyy
This must be the ouput (spanish as my languaje) for the current date.
06 de febrero de 2018
but DocIo dont proper render template text y got
06 6e febrero 6e 2018
They ignore que literal text wich is enclosed with ' and transform the d to the day value (6)
' de ' dont must be alterated
This work properly in MS Word
Sorry about my english