Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .ismx

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

Below, you can find answers to the following questions:

  • What is the .ismx file?
  • Which program can create the .ismx file?
  • Where can you find a description of the .ismx format?
  • What can convert .ismx files to a different format?
  • Which MIME-type is associated with the .ismx extension?
Microsoft Expression Encoder Index .ismx file icon

Microsoft Expression Encoder Index

The ISMX file is a Microsoft Expression Encoder Index. Microsoft Expression Encoder is a transcoding and non-linear video editing software application for Microsoft Windows. The .ismx file is an index of the MPEG-2 TS files, and the .ism file is a standard Smooth Streaming SMIL 2.0-compliant server manifest that is used by the on-demand Smooth Streaming module.
Detailed description not available
Category: Multimedia files
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
MPEG-2 Transport Stream
IIS Smooth Streaming Video
IIS Smooth Streaming Audio
IIS Smooth Streaming Server Manifest Data
Microsoft Expression Encoder Live Encoding
Microsoft Expression Encoder Job
Microsoft Expression Web Add-in
IIS Smooth Streaming Text Stream
Microsoft Expression Web PHP Script

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

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

iMindMap 5 Exported Document
Synergy/DE Data Index
IIS Smooth Streaming Audio
IIS Smooth Streaming Client Manifest Data
Intrasis Object File
SysMetrix Skin

The .ismx filename extension is often given incorrectly!

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

isx (1), isma (1), imx (1), smx (1), ismc (1), ism (1)

Can't open a .ismx file?

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

Windows can't open this file:

File: example.ismx

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 2003/2008/2012/2016, Windows 7, Windows 8, Windows 10, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android