Hi @Aruljiju433 You will be able to upload your course content by following these steps:
1. Navigate to the Curriculum page in your course management tools.
2. If you haven’t created a section yet for your course, click the + icon that appears.
3.Enter a title for the section in the designated blank, and as an optional step, add a learning goal that students will achieve in the section (in the blank space under “What will students be able to do at the end of this section?”)
4.Click Add Section.
You can also refer this article here.