![how to activate microsoft office 2016 through regedit how to activate microsoft office 2016 through regedit](https://www.campcodes.com/wp-content/uploads/2020/06/microsift-office-2019-activator.jpg)
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The correct registry keys for a click to run installation (which covers most users) are: While this will be fixed in a future update, you can fix it now by adding the following values to the registry. This is due to an incorrect registry entry for the preview handler. This file cannot be previewed because there is no previewer installed for it.
![how to activate microsoft office 2016 through regedit how to activate microsoft office 2016 through regedit](https://www.wholsalekeys.com/wp-content/uploads/2020/01/ID-INSTALATION.png)
When they select an Excel attachment, they receive the following error message:
![how to activate microsoft office 2016 through regedit how to activate microsoft office 2016 through regedit](http://latestuploads.net/wp-content/uploads/2017/08/Office-2016-Fee-Download-with-Activator.jpg)
Users who were upgraded to Office 2016 have discovered they can’t preview Excel files in Outlook’s reading pane.