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ISMX file extension

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

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

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

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

✅ Microsoft Expression Encoder Index

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.
ISMX format description not yet available
Category: Multimedia files
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
ISMX aliases:
ISMX related links:
ISMX related extensions:
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

Microsoft Expression Web XML Data

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

🚫 The .ismx file extension is often given incorrectly!

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

imx, ism, isma, ismc, isx, smx

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

SysMetrix Skin
iMindMap 5 Exported Document
Intrasis Object File
InstallShield Setup Project
IIS Smooth Streaming Server Manifest Data
C64 Image System Multicolor Bitmap
ISAM Database
IIS Smooth Streaming Client Manifest Data
Synergy/DE Data Index

🔴 Can't open a .ismx 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 .ismx 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 .ismx file extension, write to us!

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Browser: Abbreviation Application Archive Audio Configuration Data Development Disk Image Document Ebook Font Game Data GIS Graphic Malware Multimedia Other Project Scam Unknown Video
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