##  [Ansys Common Fluids Format - Previous releases](/docs/cff/previous) 

###### **Common Fluids Format SDK Guide**

Describes the classes, functions, and enumerated types that allow you access to read in existing files and to write your own data to new files.

[2025 R2](/docs/Common-Fluids-Format-2025-R2/index.xhtml)

[2025 R1](/docs/Common-Fluids-Format-2025-R1/index.xhtml)

[2024 R2](/docs/Common-Fluids-Format-2024-R2/index.xhtml)

[2024 R1](/docs/Common-Fluids-Format-2024-R1/index.xhtml)

[2023 R2](/docs/Common-Fluids-Format-/index.xhtml)