Notes about the UAS file extension:
To open this file type, a required software must be installed. Without it you only see a Windows message "The following file cannot be opened
" (Windows 7) or "How do you want to open this file?
" (Windows 10) if you double-click the file. There click on "More apps"
and choose a suitable software to view such files on your PC or from email attachments.
The UAS file type is primarily associated with 'PhotoImpact' by Ulead Systems, Inc.. PhotoImpact is a complete digital image-editing suite from Ulead. The UAS file is produced periodically as a backup of the current project and if the program terminates abnormally you can use this file to get back to the place you were at when that happened.
Detailed information for file extension UAS:
File classification: Graphic
To change file associations press Windows Key
and then Apps and Features
> Default apps
> Choose default apps by file type
Invalid file associations could be the result of underlying issues within your Windows PC.