OneDrive is a storage app part of Microsoft Office 365 offering. It works across devices including PCs, mobiles, iPads or web browsers.

Step 1: Sign in to portal.

Step 2: Select the OneDrive tab or icon from the portal.
Step 3: After selecting the OneDrive tab then the onedrive opens in the new tab, from where you can access the the OneDrive or OneDrive folders.