Did you know that you can export your assignments into a CSV from both Google Classroom and Microsoft Teams and upload it to your Student Information System such as Skyward? In Google Classroom, Click on the Class, then the assignment and then in settings (looks like the gear) you can click on download the assignment or all assignments as a CSV.
Here is a Youtube video resource to complete this in Skyward: https://www.youtube.com/watch?v=5mfeVZSEdSQ
Here is a Youtube video resource to complete this in PowerSchool. https://www.youtube.com/watch?v=J1y6ZCR6PeI