File Extension Library


.FNL File Extension

  • Developer by: Microsoft Corporation
  • Category: Various data Files

What are .FNL files and how to open them?

Can't open .FNL file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .FNL file.

What is a .FNL file extension?

.FNL file extension is created by Microsoft Corporation. .FNL has been classified as Various data Files.

.FNL is Microsoft Live Mesh data

The fnl file extension is associated with the Microsoft Live Mesh, a data storage and cloud service on the Internet developed by Microsoft Corporation.

The fnl file stores various data used by Mesh.

The Live Mesh was replaced by Microsoft SkyDrive (now OneDrive).

.FNL file format is deprecated and this file format is no longer supported.

Currently, .FNL file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .fnl file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to fix problems with .FNL files

  1. You need to update the application that you normally use to open .FNL files. Only the latest version of the software supports the current .FNL file format
  2. You need to check the .FNL file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)