What is a TDF?
How do I download my dive computer information?
TDF stands for Tab Delimited File, which is a generic format for transferring spreadsheet information.
While DiveBook does not inherently download dive computer information, it does have a Importing Plugin system, so that should a plugin for your device become available, you would only have to drop it into the ~/Library/Application Support/DiveBook/Import Plugins/ folder, and DIveBook could use it. By default, DiveBook includes importing from a UDC (Universal Dive Computer) File, should you have amethodology to get you data into that format.
Further questions? Please contact me.