The file extension ARS is used by the Adobe After Effects video compositing and animation software for rendering settings templates. ARS files store the rendering module's quality settings, such as resolution, quality, and calculation quality of the effects.
ARS files can be loaded and saved via the template window of the render settings, which can be accessed via 'Edit -> Preferences'. It should be noted that ARS files from older versions may not be available in newer versions.
Most often resolving problems with opening ARS files is very simple. Just install an appropriate program that supports such files. All of the listed programs support ARS files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of ARS files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate ARS files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Adobe After Effects applications is not on the list, select "Browse" option in order to manually locate the directory where Adobe After Effects has been installed.
Sometimes problems with opening ARS files may not lie with the application itself, but can arise due to other causes, such as: