What Is the .X File Extension Classification?

Programming languages are systems of letters, numbers, symbols and words used to write applications and software for computers. A number of programming languages are available for computer programmers and engineers, and each has its own file types associated with its use. One such file type uses the .X file extension.

Identification

A file with the .X file extension is known as a Lex source code file. Files with the .x file extension are often called "lex.yy.c.x," explains FileInfo.com.

Function

A file with the .X file extension contains instructions that computers which use the Unix operating system use to complete tasks. These instructions are written in a programming language called Lex.

Programs

A number of programs can create and access files with the .X file extension, including Lex for Linux and Flex and MKS Lex & Yacc for Windows. You can also edit the contents of a file with the .x extension through the use of a text editor program like Notepad++, Wordpad, AbiWord or Vi.

References

• FileInfo.com: X File Extension
• FileInfo.com: Common Text Editing Programs