.CLEO File Extension

CLEO Grand Theft Auto Mod File

Developer CLEO
4.2  |  96 Votes

What is a CLEO file?

Plugin file used as part of the CLEO library, which is used for executing modifications to some Grand Theft Auto series games; stores a library in the Dynamic Link Library (.DLL) format and enables "opcodes" which can be scripted to alter game content.

More Information

CLEO plugins should be installed to the \​CLEO\​ directory within the GTA SA installation directory. When the game runs at startup, the CLEO library scans for plugins and runs them.

Some common CLEO files include:

  • IniFiles.cleo: contains opcodes that can be used in INI files.
  • FileSystemOperations.cleo: stores opcodes for operating on files and folders.
  • IntOperations.cleo: enables logical operators, such as AND, OR, and XOR.
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Programs that open or reference CLEO files


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