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Name Microsoft Access Encrypted Database File
Version 1.0
Other names  
Identifiers Library of Congress Format Description Identifier:  fdd000462
PUID:  fmt/1807
Wikidata QID Identifier:  Q117456796
Classification Database
Description Microsoft Access Database File, formerly known as Jet MDB Database format, is propriatory file format developed and used by Microsoft as a native format for its Microsoft Access (formerly Microsoft Jet Database Engine) desktop database management system. First released in 1992, starting with version 1.0 the earlier versions of the database used the Jet Database Engine, with version 1.0 having a maximum size of 128 megabytes, then increasing to 1 gigabyte with versions 1.1 and 2.0. Microsoft Access also allowed for "encrypting" a database, described as: "Encrypting a database compacts the database file and makes it indecipherable by a utility program or word processor. Decrypting a database reverses the encryption." Encrypted files have a common header with a version byte at the same offset as unencrypted files. This entry records the encrypted files of version 1.0 of MDB file format. For a full list of versions please follow the links provided in the Notes section.
Byte order  
Related file formats Is previous version of Microsoft Access Encrypted Database File (1.1)
Is subtype of Microsoft Access Database File (1.0)
Technical Environment  
Supported until  
Format Risk  
Developed by Microsoft Corporation
Supported by None.
Source The Church of Jesus Christ of Latter-Day Saints / The Church of Jesus Christ of Latter-Day Saints
Source date 05 Jan 2023
Source description  
Last updated 02 May 2023
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