Cannot open image files via double-click in file browser after installation of MS Office in Crossover
The symptom of this issue is a crossover logo to mark jpg/png/etc image files in your file browser, rather than your standard "image" symbol, and a failure with "there is no application configured to handle these file types" message when you double-click on a given image file in your file browser.
During your MS Office installation the Microsoft Picture Viewer set some associations that it is not usually supposed to set, and now your image files are associated with the MS Picture Viewer in Crossover, which doesn't work.
To correct this problem, go to Crossover's Manage Bottles menu, select the MS Office bottle, and then go to Control Panel>Edit Associations. Uncheck "Show Common File Types only", and then locate the image file type extensions (jpg, jpeg, png, etc) and make sure they're set to "Ignore Extension". Apply, then Ok. You may need to logout/login to your user account on your machine for these changes to take effect.