Office 365 (Outlook Client for Windows) - How to View Subfolders Within a Folder

If you are having trouble finding your folders in Outlook, you may need to expand your folders to find the sub-folder/s within. 

Click the hollow triangle to the left of the folder to expand it and the sub-folders will appear.  When the triangle is solid black, it means that the folder has been expanded.

Outlook Folders Expanded and Collapsed

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