Recent Places has disappeared as a Save or Open option my Navigation Pane

[johntehan56]

I file and save 20 - 50 files a day and have built quite a complex hierarchy of folders. The Recent Places option usually underneath Downloads (itself underneath Desktop) provides a really quick shortcut for file access within the Navigation Pane .....but it plumb disappeared ...and from all MS Office applications....a week ago. Any idea how to re-activate that in the navigation pane?