.atw is Attityd survey program data
Key Features: .ATW File Extension
What is an .ATW file?
The atw file extension is associated with Swedish Attityd web service. The atw file stores survey program data.
Seems to be very rare used or obsolete file format without support from developer.
This atw 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.