A daily updated filename extension database!

SMIL file extension

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

  • What is the .smil file?
  • What program do I need to open a .smil file?
  • How can the .smil file be opened, edited or printed?
  • How can I convert .smil files to another format?
  • Where can I find the specifications for .smil?
  • Which MIME-type is associated with the .smil extension?

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

0 extension(s) and 2 alias(es) found in database

.smi file extension details

Synchronized Multimedia Integration Language

Synchronized Multimedia Integration Language .smi file icon
SMI file a Synchronized Multimedia Integration Language document. SMIL is a W3C Recommended XML markup language for describing multimedia presentations.
Category: Multimedia files
Application: Windows Media Player
Mime-type: application/x-smil
Magic number: -
Magic string: -
Sample: -
SMI aliases:
SMI related links:
SMI related extensions:
Extensible Markup Language File

M3U Playlist File

M4U Playlist File

RealPix Clip

XML Shareable Playlist File

Sandisk Sansa Playlist

.sml file extension details

SMIL Document

SMIL Document .sml file icon
SML file is a SMIL Document. The Synchronized Multimedia Integration Language, is a W3C recommended XML markup language for describing multimedia presentations.
Category: Multimedia files
Application: QuickTime Player
Mime-type: application/smil+xml
Magic number: -
Magic string: -
Sample: -
SML aliases:
SML related links:
SML related extensions:

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

.smil file extension error

The .smil file extension is often given incorrectly!

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

mil, smol, smi, msil, sml, sil

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Micro Illustrator Uncompressed Image
Spartan Molecule Data
Silhouette Designer Document
CALS Compressed Bitmap
SmartInspect Log
SAMI Captioning File
Synchronized Multimedia Integration Language
SMILES Chemical Document
SMIL Document
Simile Model
open .smil file

Can't open a .smil 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 .smil file association, check the FAQ.

.smil file extension

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 .smil file extension, write to us!

.smil file extension

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