READ
This command reads in data into the active Mesh Object, replacing whatever data might have been previously contained in the active Mesh Object.
FORMAT:
avs, LaGriT, and gmv formats are supported.  The other formats may be used, but no guarantees are made about their capabilities. goCad format is supported only for reading TSURF files.

read/avs
read/LaGriT
read/gmv
read/gocad
read/iges_grid
read/ngp
read/vrml
read/datex
read sheetij
read/gmvfreeformat
read/zone|zonn

Note: To read tabular data (spreadsheet style x,y,z nodes or attributes) see: cmo/readatt/...
EXAMPLES:
read / gmv / myfile / mesh_object_name
read / LaGriT / myfile

Short form syntax does not require file type as the second token. This is supported for the suffixes listed below. Suffix may be upper or lower case.

read / example.[inp|avs|gmv|ts|lg|lagrit] / mesh_object_name

See links to various formats for more detailed explanations and examples.