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LOCKFILE File - What is a .lockfile file and how do I open it?

Learn about .LOCKFILE files and view a list of programs that open them.

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Overview

What is a LOCKFILE file? Lock file used by the application preferences component of Mac OS X 10.7 Lion; saved as an empty file alongside a corresponding .PLIST file (e.g., the lock file for com.myapp.plist is com.myapp.plist.lockfile ; used for marking access to a program's PLIST file when an application is open.

More Information If a LOCKFILE file is deleted, Mac OS X recreates it the next time the corresponding application is opened. For example, if you delete Apple Mail's com.apple.mail.plist.lockfile file, it will be recreated the next time Mail is opened. Lock files can be found in the user's ~/​Library/​Preferences/​ directory.

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VerifiedVerified by FileInfo.com The FileInfo.com team has independently researched the Mac OS X PLIST Lock file format and Mac apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified. If you would like to suggest any additions or updates to this page, please let us know .

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DeveloperApple
Popularity4.1 | 7 Votes

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In-Depth

.LOCKFILE File Extension

Mac OS X PLIST Lock File

DeveloperApple
Popularity
4.1  |  7 Votes
 

What is a LOCKFILE file?

Lock file used by the application preferences component of Mac OS X 10.7 Lion; saved as an empty file alongside a corresponding .PLIST file (e.g., the lock file for com.myapp.plist is com.myapp.plist.lockfile ; used for marking access to a program's PLIST file when an application is open.

More Information

If a LOCKFILE file is deleted, Mac OS X recreates it the next time the corresponding application is opened. For example, if you delete Apple Mail's com.apple.mail.plist.lockfile file, it will be recreated the next time Mail is opened.

Lock files can be found in the user's ~/​Library/​Preferences/​ directory.

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Programs that open or reference LOCKFILE files

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Apple macOS

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Category: System Files

Updated: January 13, 2015

FAQ

What is a LOCKFILE file?↓
Lock file used by the application preferences component of Mac OS X 10.7 Lion; saved as an empty file alongside a corresponding .PLIST file (e.g., the lock file for com.myapp.plist is com.myapp.plist.lockfile; used for marking access to a program's PLIST file when an application is open.

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