Opening LOKF Files

The LOKF file type is primarily associated with Microsoft Office.

LOKFFile Extension LOKF
File extension: LOKF
File type:  temporary lock file

What is a LOKF file

LOKF files mostly belong to Microsoft Office. LOKF files have multiple roles depending on their source.
In many cases, these files are temporary lock files created by Microsoft Office programs. They use an internal ZIP format to secure a document during an active session and prevent editing conflicts. The file is normally removed when the application closes the document.
Sometimes, a LOKF file appears as a ransomware file extension where the internal format is similar to a JPG image. In these instances the file locks image content with encryption.
There is also a variant that uses an EXE format, acting as a locked executable file generated by security software like CheckPoint ZoneAlarm.
  • If the file originated from Microsoft Office, let the program manage it rather than opening it manually.
  • If you notice unexpected LOKF files especially during a suspected ransomware attack, run a full antivirus scan.
  • For locked executable files, do not execute them unless you are certain they come from a trusted source.
  • How to open LOKF files

    You need a suitable software like Microsoft Office to open a LOKF file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your LOKF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a LOKF file directly in the browser:. Just drag the file onto this browser window and drop it.

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    Programs that open and convert LOKF files:

    1. Microsoft Office
      See the previous paragraphs to learn more about the main application. LOKF files are often referred to as Microsoft Office miscs because this type of file is primarily created or used by this software.
    2. Microsoft Office Suite
      A .LOKF file signifies a locked file, typically associated with Microsoft Office applications. It serves as a temporary indicator that a file, such as a Word document or an Excel spreadsheet, is currently in use and prevents other users or processes from modifying it simultaneously. The presence of a .LOKF file helps avoid data corruption and ensures data integrity during concurrent access attempts. These lock files are automatically generated when a file is opened and are usually removed upon closing the file. However, under certain circumstances, such as an application crash or improper file handling, .LOKF files may remain, preventing access to the original file until manually deleted. This file format is classified as Temporary/Lock File.

    Technical Data for LOKF File Extension

    File classification:
    Misc
    Related files:

    a lokf temporary lock file is a special file format and should only be edited and saved with the appropriate software.

    How to solve problems with LOKF files

    • Associate the LOKF file extension with the correct application.
    • Update your software that should actually open temporary lock files. Because only the current version supports the latest LOKF file format. Search, therefore, e.g. on the manufacturer website after an available Microsoft Office update.
    • To make sure that your LOKF file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
    • Click here to open your .LOKF file online - secure, fast, and no downloads needed.
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    LOKF file viewer LOKF file description