I purchased a theme in themeforest and downloaded to my office network drive. Now wanting to upload it into Elementor page builder plugin’s library to potentially modify, learn. This is my first time trying to use Elementor and first time trying to customize a theme, so am a bit lost in getting started, I am afraid.
Hi,
Remember Customization is not author responsibility.
You can contact with your purchased item author if your item is supported then you will be getting help from them.
contact your Item Author
Or you can hire some one from Envato studio, This is Envato freelancer platform.
Envato Studio: Here
You are mistaken. Themes from themeforest cannot be uploaded to Elementor library. You have to install these themes using the Native WordPress Installer by navigating to Appearance > Themes > Add New Theme
Please check the theme documentation hopefully you will get necessary support in documentation.