OneDrive is part of the Microsoft Office 365 suite. You can access it through the Microsoft portal at https://portal.office.com. You will be prompted for login information. Please use your ULCN credentials to login.
Once you are logged in you will be inside Office 365 browser version and you can access the files in your OneDrive. Clicking the 3×3 matrix of dots in the top-left corner you can select the OneDrive option. Upon selection you will be presented a browser version of a file explorer.