Why? It seems to be a forgotten remnant of much earlier versions of Office. The ‘Save Thumbnails …’ option is the exception. You’re right, Advanced Properties is supposed to be settings and info for the current document only. Hang on, I hear you cry! All these settings are document properties, Office says so, not overall settings for Word, Excel or PowerPoint.

In PowerPoint the same option is called ‘Save preview picture’. It’s hiding at File | Info | Properties | Advanced Properties | Summary | Save Thumbnails for all Documents.ĭown the bottom of the Summary dialog is the option ‘Save Thumbnails for all Documents’. It’s not in File | Options where you’d expect it to be. You won’t find the ‘Save Thumbnails for all documents’ option anywhere obvious. Saving Thumbnails for all Office documents Microsoft used to call them preview images. Thumbnails are the small images that appear in File Explorer instead of the standard icons for Word, Excel, PowerPoint etc. We’ll dig into how thumbnails work for some nerdy extra detail. Adding thumbnail or preview image for Word, Excel or PowerPoint Office documents is easy, though you won’t find the choice anywhere obvious.

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