Thank you for your post.
If a file is to be shared, it needs to be open on a host computer with other users accessing the file. If the file cannot be hosted, then you can definitely copy the file to your iOS device. Here are the steps to do this.
1. Connect your iOS device (iPad, iPhone, iPod touch) to your Mac or Windows machine.
2. Launch iTunes.
3. In the left pane of iTunes, find your device name (under DEVICES) and click on it.
4. On the right side, click on the tab "Apps"
5. Scroll to the bottom under File Sharing, and select the App FileMaker Go.
6. To the right, under "Documents", are the FileMaker Pro files (and possibly PDF or text files) currently installed on the iOS device.
7. Drag the desired FileMaker Pro file from your Mac/Windows machine into the Documents box with the other files and let go. This will copy the file to the iOS device.
8. Launch FileMaker Go. In the main screen, on the left side, you will see the desired database file. You can now open and use it.
Let me know if you need additional clarification.