.tdf
| File Type 1 |
 Guide Text Definition File |
| File Format |
Proprietary (Project Pluto) |
| Usage |
Open manually; may be referenced by an application |
| Popularity |
★ ★ ★ ☆ ☆ Average |
| Description |
Contains definitions of datasets used by a Guide, a star charting and desktop planetarium program; may be included on the application CD or saved on the hard disk during a program installation.
Text definition files can be modified in a text editor.
|
| Open With |
| Windows |
 Project Pluto Guide
|
|
| Updated |
2007 |
| File Type 2 |
Title Definition Format File |
| File Format |
Proprietary (321 Studios) |
| Usage |
Referenced by an application; not meant to be opened manually |
| Popularity |
★ ★ ★ ☆ ☆ Average |
| Description |
Contains setup instructions for backing up DVD movies; used by DVD X software such as DVD-X Copy, DVD X Platinum, and DVD X Copy Express; may be used to modify and fix DVD authoring problems and incorrect titleset selections made by the DVD X software.
321 Studios has ceased operations for legal reasons.
|
| Open With |
| Windows |
321 Studios DVD X Copy software
|
|
| Updated |
2007 |
| File Type 3 |
Xserve Test Definition File |
| File Format |
Proprietary (Apple) |
| Usage |
Open manually; may be referenced by an application |
| Popularity |
★ ★ ★ ☆ ☆ Average |
| Description |
Stores test instructions and parameters for system tests run by Xserve Remote Diagnostics; used for testing the performance of components in an Apple Xserve server computer; can be edited in a text editor.
|
| Open With |
| macOS |
Apple Xserve Remote Diagnostics |
|
| Updated |
2007 |
|
