File Extension Library


.LSF File Extension

  • Developer by: Microsoft Corporation
  • Category: Digital video and movie Files

What are .LSF files and how to open them?

Can't open .LSF file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .LSF file.

What is a .LSF file extension?

.LSF file extension is created by Microsoft Corporation. .LSF has been classified as Digital video and movie Files.

.LSF is Advanced Streaming Format

The lsf file extension is associated with the Advanced Streaming Format developed by Microsoft.

Advanced Streaming Format (sometimes known as Active Streaming Format) is a container format designed by Microsoft to support audio and video playback from a variety of sources including both local playback and internet delivery.

The format is designed to allow playback to commence without the complete file being available. This makes it suitable for internet use where playback can begin soon after download commences or for PVR-type functions such as pausing live TV.

The container can be used to hold a variety of video and audio codecs but it is most commonly used for the WMV and WMA codecs. Other streams such as subtitles can also be included in the format.

The format supports inclusion of meta-data such as video clip name, song title etc. Support for DRM is also provided.

MIME types:
video/x-la-asf
video/x-ms-asf


How to open:

Use compatible tools to work with *.lsf files.

How to convert:

Compatible tools may be able to export *.lsf files to other formats.

How to fix problems with .LSF files

  1. You need to update the application that you normally use to open .LSF files. Only the latest version of the software supports the current .LSF file format
  2. You need to check the .LSF file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)