Reply To: Import theme and options

Hi, I have the following need: on site “A” I have installed the Woodmart theme with the “Electronics” setting. Later I made various customizations (colors, menus, etc.) and created HTML blocks. But now I should import all these settings on a new site “B” which has a different database from site “A”, how to do?
From site “A” I exported the .json file but when I go to site “B” in Theme Setting> Import / Export I don’t see how to load the .json file