Canon EOS 6D Instruction Manual page 20

Sending Images
When sending large files, make sure that the battery is adequately
charged so it does not run out during the process.
If playback or shooting operation is started during the connection, the
connection will be terminated.
RAW images cannot be sent.
You can send up to 50 files.
W-18
Reduce the image size.
4
Set it if necessary.
Send the images.
5
Press the <V> key to select [Send],
then press <0> to send the images.
The transfer progress screen is
displayed.
To transfer other images, repeat
steps 1 to 5.
Terminate connection.
6
Press the <M> button to display
the confirmation screen. Press the
<U> key to select [OK], then press
<0> to terminate the connection.
The [Wi-Fi function] setting screen
will reappear.