The File Extensions Database

.DASH File Extension

  • Category: Video Files

What is an .DASH file?

.DASH is MPEG-DASH Video File

Video file created for high quality video playback on sites such as YouTube and Netflix; contains HTTP based segments of media content, such as .MP4 files, that are encoded with different bit rates in order to keep a video playing through changing network conditions.

DASH (Dynamic Adaptive Streaming over HTTP) files are distributed over the DASH protocol. When clients, like web browsers, play back the DASH encoded content, they select the DASH file segments with the appropriate bitrate to avoid rebuffering and stalls. They choose the bitrate based on the current performance of the network, e.g., how well your devices are receiving the Internet.

The RealPlayer Downloader automatically plays DASH files as MP4 files after downloading. DASHEncoder is an open program used to create content in the DASH format.

NOTE: If you have a DASH file on your computer, it is similar to a .PART file because it is incomplete. The file may need to be combined with other DASH files in order to be played.

Programs that open MPEG-DASH Video File
VideoLAN VLC 2.0 Twoflower
RealNetworks RealPlayer Cloud
VideoLAN VLC 2.0 Twoflower
File Type 2 Dashlane Profile
Developer by: Dashlane, Inc. Category: Backup Files

File created by Dashlane, a program used for password management, saving confidential data, and making secure online payments; contains user data and other information which the user stores securely in Dashlane.

DASH files are created automatically by the Dashlane program itself. They may also be manually exported by the user for the backup purposes.

In Windows, DASH files may be found in the following directory:


In Mac OS X, DASH files can be accessed in the directory:

~/Library/Application Support/Dashlane/profiles

NOTE: Since OS X 10.7 Lion, this folder is hidden by default.

Programs that open Dashlane Profile

How to solve problems with DASH files

  • Associate the DASH file extension with the correct application. On :
    Windows: Right click on any DASH file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.DASH files". Mac: Right click (or Ctrl-click) the DASH file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .DASH is MPEG-DASH Video File. Because only the current version supports the latest DASH file format. Search, therefore, e.g. on the N/A manufacturer website after an available .DASH is MPEG-DASH Video File update.
  • To make sure that your DASH file is not corrupted or virus-infected, get the file again and scan it with antivirus software.