The ASF file extension refers to the media container format developed by Microsoft to stream media files – Advanced Streaming Format. ASF files are a widely used media-streaming format and are widely supported across platforms. ASF files can be edited with the appropriate software.
The ASF file extension is associated with the pre-Windows version of Stargraphics application for data and statistical analysis. The .asf file contains various data used for internal purposes of the Statgraphics application.
The ASF file extension is associated with the "A Programming Language" (APL) developed by IBM in 1960. APL is very much mathematically inspired and used a powerful notation for mathematical algorithms. APL*PLUS/PC is APL for IBM PC with DOS operating system.