> For the complete documentation index, see [llms.txt](https://particle-analytics-1.gitbook.io/iota-user-manual/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://particle-analytics-1.gitbook.io/iota-user-manual/simulation_data_interfaces/support_liggghts.md).

# Support LIGGGHTS simulations

Iota can run coarse-graining analysis for the following output DEM files generated by [LIGGGHTS](http://www.cfdem.com/liggghts-open-source-discrete-element-method-particle-simulation-code):

* [**LIGGGHTS DUMP**](/iota-user-manual/simulation_data_interfaces/support_liggghts/using_liggghts_dump.md): ASCII files generated by the `dump custom`, `dump local` and `dump stl` commands in the LIGGGHST simulation script. More details can be found [here](/iota-user-manual/simulation_data_interfaces/support_liggghts/using_liggghts_dump.md)
* [**LIGGGHTS VTK**](/iota-user-manual/simulation_data_interfaces/support_liggghts/using_liggghts_vtk.md): VTK files in ASCII or binary format generated by generated by the `dump custom/vtk`, `dump local/gran/vtk` and `dump mesh/vtk` commands in the LIGGGHST simulation script. More details can be [here](/iota-user-manual/simulation_data_interfaces/support_liggghts/using_liggghts_vtk.md)