You can attach files from your computer, OneDrive, or other storage accounts to email messages and calendar events and share them with others.
Attach files from your OneDrive or other cloud location.
1. Open an existing message or click 
2. In the message
a. Click 
b. Select Browse cloud locations
3. Choose the file you want to attach
4. Select Next
5. Select how you want to share this file
a. Share as a OneDrive link. Recipients will receive a link to an online version of the file.
b. Attach as a copy. Recipients get a copy of the file.
Attach a file from your computer
When you attach a file from your computer, you're attaching a copy of the file.
1. Open an existing message or click 
2. In the message
a. Click 
b. Select Browse this computer
3. Choose the local file you want to attach and select 
