Exporting Zip File in Storyline 360 - changes in size

I was working on my last three storyline 360 projects and really just going through them to ensure I had everything correct.  I had previously exported them in a zip file for LMS using scorm 1.2 and for some reason when I exported the last time after making grammatical changes and such each file is now double in size.  One went from .65GB to 2.23 GB, second one went from 1.3GB to 2.72GB and the last one went from 1.01GB to 2.11GB.  I know I added some content to the second but not enough for it to double in size.  Anyone have any suggestions?