The FOLDER file extension is related to some sort of the registry keys in Microsoft Windows registry.

Detailed description

Software that works with folder file extension

Add comment

Bookmark & share this page with others:

FOLDER file - Microsoft Windows Explorer folder file

What is folder file? How to open folder files?

File type specification:

System file type icon System file type

folder file icon: folder filetype icon

The FOLDER file extension is related to Microsoft Windows. These *.folder files are used by Windows registry to define new folder by entries in the registry key HKEY_CLASSES_ROOT\.Folder and all related keys.

The default software associated to folder file type:

Microsoft Windows icon

Microsoft Corporation logoMicrosoft Windows  Microsoft Windows software

Company or developer:
Microsoft Corporation

A family of operating systems developed by the Microsoft Corp. The first Windows was released in 1985 as a GUI add-on to MS-DOS.  MS-DOS based Windows versions were developed to 2000, when was released the last version called Windows ME. Windows based on NT core started in 1993. Windows NT family are developed to these days, the latest version is called Windows 10.

Help how to open:

Open with: Explorer.exe /idlist
This is an additional parameter that means a Windows internal structure is being passed.

How to convert:

Unless there are suggested applications listed below the extension description, that are able to convert the system files, there is usually no way to convert system files into any other file format.

Any attempts to rename system files is strongly discouraged, as it can cause the system to be corrupted and not work properly.

List of software applications associated to the .folder file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open folder file, edit folder file, convert folder file, view folder file, play folder file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is ableto perform the specified software action, such as opening, editing or converting folder files.

  • Create folder file
  • Others folder file

Programs that can create folder file - Microsoft Windows Explorer folder file

Programs supporting the exension folder on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about Microsoft Windows for create folder file action.

Microsoft Windows:

Previous file extension
FLT file extension > System file types

Next file extension
file extension FS


Follow us!

Enter any file extension without dot (e.g. pdf)
Search for file extension details and associated application(s)

RSS feed