Completing Designer Setup in Salesforce
To permit Designers to assign apps they have created to users and use the Launch from Salesforce feature, a Salesforce admin must add two buttons to the App Page Layout: the Assign button and the Excel Setup button.
For Microsoft Dynamics instructions, refer to Launching an X-Author for Excel App from Microsoft Dynamics.
To add the Assign button in Salesforce
Add the assign button to the layout that leads you to the user profile page.
To add the Excel App Setup button in Salesforce
Designers must have the Excel App Setup button added to their layout on the Apps List view to use the Launch from Salesforce feature.