S3I file extension is for Sample file Digiplayer - ST3
Similar to S3I
A4P - Authorware File Without RuntimeA5W - Unpackaged Authorware Windows File
A60 - Roland Garros Tennis MVTS File
A64 - Artist 64 file
A6P - Authorware Application
A8 - Alpha channel image data 24-bit 3D animation Cubicomp PictureMaker
A8 - Cubicomp PictureMaker 24bit 3D Animation file
View all in File Extensions