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.LCK File Extension

File TypeProgram Lock File

3.3 (50 Votes)
CategoryMisc Files

What is an LCK file?

An LCK file is an access control file used to "lock" a database or other file from being opened or changed by more than one user at a time. It prevents users from accidentally overwriting changes and possible data corruption. LCK files are typically open when the file is not in use and locked when a user is working on the file.

More Information

LCK files may be used by a variety of programs and databases. Some programs that use LCK files include Microsoft FrontPage, Corel Paradox, Adobe Dreamweaver, Autodesk Inventor, Pegasus Mail, and ACT! contact management software.

NOTE: Since lock files are managed by their corresponding applications, they should not be opened manually.

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Programs that open LCK files
Referenced by various applications
Updated 2/27/2019

About LCK Files

Our goal is to help you understand what a file with a *.lck suffix is and how to open it.

The Program Lock file type, file format description, and Windows programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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