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LDB MDB
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Convert LDB to MDB

Can you convert LDB to MDB?
Verified by Adam B.· reviewed by FE Editorial ·updated Jun 29, 2026
QUICK ANSWER
Is it possible to convert LDB to MDB?
No - not a direct conversion.

An .ldb is a temporary lock file Microsoft Access creates next to an .mdb database to track active connections. All database content is in the .mdb file. Open the .mdb directly in Microsoft Access to work with the data.

No direct path
Also to MDB: BTR · NPF · SDF

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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Why convert LDB to MDB?

An .ldb (Microsoft Access Record-Locking Information File) contains only fixed 64-byte records storing the computer name and Windows user name of each active connection - no tables, queries, forms, or records. The .mdb file beside it holds all the actual database content. Converting .ldb to .mdb is not possible because there is no data to convert.

About these formats

.LDB Microsoft Access Record-Locking Information File

An LDB file is a temporary lock file Microsoft Access creates next to an .mdb database while it is open. It tracks who has the database open - you do not open or convert it. Access deletes…

Open .LDB details →
.MDB Microsoft Access Database (97-2003, Jet engine)

An MDB file is a Microsoft Access database in the old format Access used from 1992 through 2003, replaced by .accdb in Access 2007. It stores tables, queries, forms, reports, and VBA code…

Open .MDB details →

Quality & what to watch

  • To work with the database, open the .mdb file - not the .ldb - in Microsoft Access.
  • If Access reports the database is locked but no one is using it, the .ldb was left by a crash; confirm no process has the .mdb open and delete the .ldb - Access recreates it on next open.
  • Modern Access databases (.accdb) use a .laccdb lock file instead of .ldb; the concept is identical.

Frequently asked questions

Can I recover database data from an .ldb file?
No - the .ldb contains only connection tracking information. All database data is in the .mdb file beside it.
Is it safe to delete an .ldb file?
Yes, as long as no user or background process currently has the database open - Access recreates it automatically on the next open.
Why does Access create an .ldb file next to my database?
Access creates it automatically when the database is opened to manage multi-user record locking; it disappears when the last user closes the database.