2°: go to Properties > EXIF.
3°: click on an item (see image below):

4°: click on another program open in the taskbar (see image below):

5°: [BUG DETECTED] return to XnView and you will see this:

6°: click on an item, and this is what will happen:

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XnView the best Free Graphic Viewer, thank you Gougelet Pierre (k)
