Inbox by Google xlsx./xls. files not opening

[Irie1]

Using an HTC M9 (Android 6.0) and a Nexus 9 (Android 6.0.1).
After the latest update to Inbox by Google. I cannot open emailed xlsx./xls. files directly from Inbox on either device. Gmail app opens them just fine. I've uninstalled and installed Inbox, Sheets, Docs and Polaris several times. Still can't get Inbox to open the files, pretty frustrating. Any thoughts, suggestions or theories would be much appreciated. Thank You

 

[Bill Davis13]

I am having the exact same problem with my Galaxy S7 Edge (6.0.1) and my Nexus 7 (6.0.1)

 

[ManiacJoe]

Can you save the attachment then open it manually?

 

[Bill Davis13]

Yes I can, but the Gmail app works so I have switched back and no longer use Inbox.