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Details of extension .261

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

Below, you can find answers to the following questions:

  • What is the .261 file?
  • Which program can create the .261 file?
  • Where can you find a description of the .261 format?
  • What can convert .261 files to a different format?
  • Which MIME-type is associated with the .261 extension?
H.261 Video .h261 file icon

H.261 Video

The H261 file is a H.261 Video. H.261 is an ITU-T video compression standard, first ratified in 1988.
Category: Video files
Application: VLC Media Player
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
.h262 H.262 Encoded Video

Other types of files may also use the .261 file extension. If you have helpful information about .261 extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

.w61 Corel WordPerfect Document

The .261 filename extension is often given incorrectly!

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

26l (1)

Can't open a .261 file?

If you want to open a .261 file on your computer, you just need to have the appropriate program installed. If the .261 association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.261

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2016/2019/2022, Windows 7, Windows 8, Windows 10, Windows 11, Linux, Mac OS X, macOS, iOS, Android