Within Teamwork Chat, you can attach files to your message replies in conversations and channels.
Click the attachment icon to the left of the message field or drag and drop the file into the message field.
Note: The maximum file size or upload at any one time is 2GB.
When posted to a Chat channel/ conversation, the file type will appears along with the file size in kB.
When sending images and videos, it will show a preview of the image. Users can click on these for a larger view within Teamwork Chat.
For more information, see: Using Markdown in Messages