A daily updated filename extension database!

FLK file extension

The table below provides useful information about the .flk file extension. It answers questions such as:

  • What is the .flk file?
  • What program do I need to open a .flk file?
  • How can the .flk file be opened, edited or printed?
  • How can I convert .flk files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

1 extension(s) and 0 alias(es) found in database

✅ Folder Lock Data

FLK file is a Folder Lock Data. Folder Lock is a full suite solution letting you keep your personal files encrypted and locked, while keeping an automatic and real-time backup of encrypted files to an online storage.
Category: Data files
Application: Folder Lock
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
FLK aliases:
FLK related links:
FLK related extensions:
Folder Lock FAT32 Portable Locker File

Folder Lock NTFS Portable Locker File

Folder Lock Wallet File

Other types of files may also use the .flk file extension.

🚫 The .flk file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

clk, fmk, blk, rlk, glk, flo, fll, elk, tlk, lk, fpk, flu, flm, fl, dlk

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Corel R.A.V.E Project
FM-Kingtracker Module
ProWorx NXT Block Data File
Civilization 4 Game Data
Flasm Disassembled SWF
XProtect Device Licence Key
Bioware Talk Table
Descent Mission Builder Block
GenStat ODBC Export Link
iGrafx FlowCharter Document

🔴 Can't open a .flk file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .flk file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .flk file extension, write to us!

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