When I export an html report, each export saves a folder called 'images' with subfolders of 'se' and 'flags' each time.

The way I'm using the reports, I don't need any of these images. Additionally, I'm uploading the exports to a server. Uploading the images adds a lot of time and takes up more space than necessary for each and every report I export.

Is there a way to export a report without including all of the default images?

Yes, you can go to Templates -> Edit and edit the code of your template. Use Ctr+F to find each instance of "img" and cut the code snippets responsible for all images. For intanse this one would be for a SE logo:



this one - for a country flag:



etc.