Hello,
Those fields are text elements of report RTXWVGTEMPLATE (some are in RTXWQU06 and RTXWQU05 as well). The "French file format" one is not translated in my system as well.
I guess the other ones are linked to the previous update of DART (from 2.4 to 2.6) you mentioned (maybe if you implemented with notes instead of SP, it didn't include all the translations). You can raise an OSS incident for this.