| Argument | Variable | Type | Length | Range | Default | Description |
| id | Id | str | 1 | | 0 | script id |
| handle | Self | self | 1 | | | handle to self |
| disabled | Disabled | bool | 1 | | 0 | disable execution and piping |
| i | Mesh | vtkUnstructuredGrid | 1 | | | the input mesh |
| ifile | MeshInputFileName | str | 1 | | | filename for the default Mesh reader |
| f | Format | str | 1 | ["vtkxml","vtk","xda","fdneut","tecplot","lifev","dolfin","fluent","tetgen","pointdata"] | | file format (xda - libmesh ASCII format, fdneut - FIDAP neutral format) |
| guessformat | GuessFormat | bool | 1 | | 1 | guess file format from extension |
| compressed | Compressed | bool | 1 | | 1 | output gz compressed file (dolfin only) |
| ofile | OutputFileName | str | 1 | | | output file name |
| o | Mesh | vtkUnstructuredGrid | 1 | | | the output mesh |
| mode | Mode | str | 1 | ["ascii","binary"] | binary | write files in ASCII or binary mode (vtk and vtu only) |
| entityidsarray | CellEntityIdsArrayName | str | 1 | | CellEntityIds | name of the array where entity ids are stored |
| entityidsoffset | CellEntityIdsOffset | int | 1 | | -1 | add this number to entity ids in output (dolfin only) |
| writeregionmarkers | WriteRegionMarkers | bool | 1 | | 0 | write entity ids for volume regions to file (dolfin only) |
