this one seemed to work. it opened up the "Base" of "Template" just fine without me setting Japanese as the extraction language!
That's good news! Thank you! I am using 7-zip to create the zip file, and I applied the parameters described in this article.
How do I use 7Zip to zip files? – QuickAdviser
Thanks to your report I was able to find this method. Thank you so much!!! I will use this method to create ZIP files in Fanbox and other places in the future.