Files with ack extension can be mainly found as special Swifty plugins/extension for Adobe Flash.
Software that open ack file
ACK file extension - Swifty data
What is ack file? How to open ack files?
File type specification:
File extension ack seems to be mainly related to Swifty Extension for Adobe Flash a multimedia and software platform.
Found as Swiffy.ack in the folder:
C:\Users\[user]\AppData\Local\Adobe\Flash CS5.5\en_US\Configuration\Extensions
This ack file type entry was marked as obsolete and no longer supported file format.
This type of file is no longer actively used and is most likely obsolete. This is typically the case for system files in old operating systems, file types from long discontinued software, or previous versions of certain file types (like documents, projects etc.) that were replaced in higher versions of their original programs.
The default software associated to open ack file:
Company or developer:
Adobe Systems Incorporated
Adobe Flash is authoring environment to create interactive web sites with animations and video contents. Flash works with vector and raster graphics to provide animation of text, drawings, and still images. It also supports streaming of audio and video. Flash content can be displayed on various computing platforms by Adobe Flash Player. Latest version Adobe Flash CC Professional is available through Creative Cloud.
Adobe Flash was replaced by Adobe Animate CC and Adobe Animate CC for Mac.
List of recommended software applications associated to the .ack file extension
Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open ack file, edit ack file, convert ack file, view ack file, play ack file etc. (if exist software for corresponding action in File-Extensions.org's database).
Unspecified and all other actions for computer programs working with ack file - Swifty data
Click on the software link(s) for more information. Suggested software applications use ack file type for internal purposes and/or also by different way than common edit or open ack file actions.