The .asm file extension is used for a source code or script file format. These ASM files contain lines of code in assembly language, and this can be converted to machine language. Applications created with assembly language use these .asm files.Assembly language is a programming language that was developed in the mid 1950s. Presently, script files in C or C++ are combined with these ASM files, which are also known as assembler source code files.These .asm files can be opened and edited using a common text editing program like Notepad. For quicker and easier creation and editing of ASM files and other files, Microsoft Visual Studio can provide more options than text editing programs.
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