Originally Posted by jackibar
Thanks so much - Okay, Sigil didn't create a Styles folder when I saved the file, and I didn't realize I needed to do so manually! Thanks for explaining that the left window is the folder "heirarchy" - that will be helpful!
Sigil will re-arrange files into folders (un-flatten some) upon first import, and will create or Add existing into the appropriate folder
Folders: Text, Styles, Images, Fonts, Misc
No other Nesting permitted