Data file
What is a .fdb file?
A .fdb file is a Legacy Family Tree Database (version 3-9). This is a data file — structured information used by a program rather than read directly.
How to open a .fdb file
- Start with the program that produced it; that's almost always the right tool.
- Open it in a text editor to see whether it's readable text or binary.
- For database formats, DB Browser for SQLite or LibreOffice Base can often import it.
The registry records this extension against Legacy Family Tree Database, so software from that family is the most likely match.
How to convert a .fdb file
- If you can view the data, exporting to .csv is usually the most portable option.
The technical record
For archivists, developers and the merely curious: these are the PRONOM registry entries for .fdb.
| Format name | Version | MIME type | PUID |
|---|---|---|---|
| Legacy Family Tree Database | 3-9 | — | fmt/1345 |