Sharing
The Sharing pop-up is invoked by pressing the Sharing icon 
at lower-right on the File list pane.
The Sharing pop-up windows has two options on it:
You can Cancel to stop sharing. The Ok button won't be enabled until you select an option by clicking on the button below it.
Email
The first time you select Email, the Server Settings pop-up window will appear. You will need to get the settings from your Internet Provider and enter them in this screen
When you press OK, the Email Client window will appear and you can compose and send your email.
Email Client:
Note: You can see the name of the attached file in the window Title bar.
Dropbox
CelticPipes can upload the Active score (on the selected tab) to a Dropbox folder.
Connecting CelticPipes to Dropbox is a bit complicated but once this is done, it will be remembered and uploading files will be very easy.
The first time you try to share a file with Dropbox, the authorization screen will appear:
Follow the instructions on the screen to proceed.
After you Sign-in to Dropbox, you will probably see a warning screen like this:
This looks frightening but it is just because CelticPipes doesn't have millions of users - sadly! We have thousands. Press Continue to proceed.
Now, you will need to allow CelticPipes access to your folder (which is the whole point of the exercise) so press Allow:
Next, you will see the code you need to copy:
So, Copy this authorization code and paste it into the CelticPipes screen that is waiting for it i.e. the text entry box to the right in section 5. Press OK.
You should now be connected and you can proceed to upload the file.