Microsoft Works Database

File Format
Name	Microsoft Works Database
Ontology	Electronic File Formats Databases Microsoft Works Database ; ; ;
Extension(s)	.wdb, .bdb
PRONOM	fmt/256, others

Microsoft Works Database is the native database format of the Microsoft Works office suite.

See Microsoft Works for more information and resources.

Identifiers

Format	Version	Ext.	PRONOM
Microsoft Works Database for DOS	1.05	.wdb	fmt/169
Microsoft Works Database for DOS	1.12	.wdb	fmt/170
Microsoft Works Database for DOS	2.0	.wdb	fmt/171
Microsoft Works Database for DOS	3	.wdb	fmt/259
Microsoft Works Database for DOS	3a	.wdb	fmt/260
Microsoft Works Database for DOS	3b	.wdb	fmt/261
Microsoft Works Database for Windows	2.0	.wdb	fmt/219
Microsoft Works Database for Windows	2.0a	.wdb	fmt/222
Microsoft Works Database for Windows	3.0	.wdb	fmt/223
Microsoft Works Database for Windows	3.0a	.wdb	fmt/224
Microsoft Works Database for Windows	3.0b	.wdb	fmt/225
Microsoft Works Database for Windows	4.0	.wdb	fmt/226
Microsoft Works Database for Windows	4.0a	.wdb	fmt/246
Microsoft Works Database for Windows	4.5	.wdb	fmt/249
Microsoft Works Database for Windows	4.5a	.wdb	fmt/252
Microsoft Works Database for Windows	2000	.wdb	fmt/256
Microsoft Works Database for Macintosh	3	.wdb	fmt/268
Microsoft Works Database for Macintosh	4	.wdb	fmt/269
Microsoft Works Database [backup file]		.bdb	x-fmt/344

Some or all early WDB files begin with (hex) 20 54 02 00 00 00 05 54 02 00.

Later versions are based on Microsoft Compound File format. The root CLSID {00021303-0000-0000-c000-000000000046} has been observed.