Quick Access to OneDrive (For Online only licenses)
If you have an Online only Office 365 ilcense, then we recommend that you Pin your OneDrive to your taskbar for quick access.
To do this open your Edge Browser (the Edge icon looks like Fig.1 below)
Fig.1
Go to www.office.com and launch OneDrive from the App Launcher (Fig.2)
Fig.2
Once your OneDrive is launched Fig.3;
Fig.3
Go to the elipses (far right) More Tools > Pin to taskbar (Fig.4)
Fig.4
The MS Teams app (Fig.5) should already be easily accessible on your PC desktop anyway, but you can pin this to your taskbar following the same steps as above if you would like.
Fig.5
E3 or E5 Licenses
If you have an E3 or E5 license and use the MS Apps (Word, Excel etc locally on the PC) then you can sync your OneDrive to your file explorer for quick access.
How do I Sync my OneDrive, SharePoint and Teams files to my PC?
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Online Apps Training
If you need some guidance on using the Online Apps and saving and opening files, please see this solution : MKUH MS Online Overview
For some general MS Online training see this solution : Microsoft 365 Training Videos