The SCALA extension is given to files that are used to store program code written in Scala. Technically, it is a plain text file that can be handled in any text editor. The code from the SCALA file is subject to compilation, as a result of which the machine code for the machine executing the program is generated.

Scala is a typically functional and object-oriented language. SCALA files can be supported on Java Virtual Machine as well as on Java Platform, Micro Edition Connected Limited Device Configuration and .NET platform.