If you have these errors when you are trying to share the Excel or word file thought the Email:
Possibly you encounter the same issue as me, I had 2 outlooks installed on the surface.
To solve this issue you need to do on your Windows 10 machine: start -> search -> outlook, if you see two outlook results (one is for windows 10 outlook app, the other one should be your desktop outlook), please remove outlook app from your machine.
Sometimes it can be named as “Office desktop apps”
After the removal sharing started to work correctly.