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Convert LDB to ACCDB

Can you convert LDB to ACCDB?
Verified by Adam B.· reviewed by FE Editorial ·updated Jun 28, 2026
QUICK ANSWER
Is it possible to convert LDB to ACCDB?
No - not a direct conversion.

An .ldb is a temporary concurrency lock file Access writes next to a .mdb database. All data is in the .mdb file. To upgrade to .accdb, open the .mdb in Microsoft Access 2007 or later and use File > Save As > Access Database (.accdb) - the .ldb is irrelevant.

No direct path
Also to ACCDB: PX · ODB · SLK

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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Why convert LDB to ACCDB?

An .ldb file consists only of fixed 64-byte records holding computer names and Windows user names of active connections - no tables, no queries, no records. It exists purely for multi-user locking. Since Access 2007, .accdb databases use a .laccdb lock file instead; the .ldb belongs to the older .mdb era.

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 →
.ACCDB Microsoft Access Database (2007+)

An ACCDB file is a Microsoft Access database - the format Access has used since the 2007 version, replacing the older .mdb. It stores tables, queries, forms, reports, and VBA code in one…

Open .ACCDB details →

Quality & what to watch

  • To upgrade an .mdb to .accdb, open the .mdb in Microsoft Access 2007 or later and use File > Save As > Access Database (.accdb) - the .ldb plays no role in this process.
  • If an orphaned .ldb is preventing access to the .mdb, confirm no process has the database open and delete the .ldb.
  • Any tool claiming to convert .ldb to .accdb produces an empty or corrupt file - the .ldb contains no database content.

Frequently asked questions

Why do LDB to ACCDB converters fail?
Because the .ldb contains only computer and user names for concurrency tracking - there is no database content to convert.
I only have the .ldb and not the .mdb. Can I recover my data?
No - your data was always in the .mdb file. You need data recovery software to find the .mdb on the original drive; the .ldb cannot help.
Is it safe to delete the .ldb file?
Yes, as long as no one currently has the database open - Access recreates it automatically on the next open.