Notes about the BTH file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The BTH file type is primarily associated with 'Bathy Recorder' by Jeppesen Marine, Inc.. The Nobeltec Bathy Recorder, sold as a Plus Pack to Visual Navigation Suite (VNS) and Nobeltec Admiral, enables you to record sea floor topographic information using your Sounder/Depth Finder device, and to incorporate that data into your 3D display. The files are named using the date and your serial number but can be shared.