To export several sets, go to the exporter. If you use the data I'd really appreciate a link back to Brick Insights. It keeps this site going.
The LEGO Xtra range is interesting as it is a little tricky to pinpoint who sets are aimed at. The various accessories are great to compliment MOCs but then sets like these will probably interest kids a lot more. Especially the tape aspects of the sets. In terms of accessories, you actually get less than you would find in one of the Xtar polybags. Still, they are unique little sets and certainly worth picking up for some of the elements. I like the style of tape used and it means it can be used on various surfaces, without being a pain to remove.