The name of an XYZ file to open. If a file already open, it will be closed before opening the new file.

The Z column number to read when using the DXYZ command.

If the Z data is to be read as text strings, define the maximum text string length in characters. If strlen is not specified, the Z column is read as a number. Note that some buffer operations will not work on text strings.

The line types and range of lines to be read by secondary command (eg. DXYZ). These are defined using the syntax:

TypesLine:Line

Where:

is one or more letters ‘L’, ‘B’, ‘T’, ‘S’, and ‘R’, which indicate Line, Base, Tie, teSt and tRend respectively.

range of lines to include.

Examples:

select only line 100. This is the same as selecting a single line in the DXYZ command.

select all lines, base lines and tie lines.

select lines and base lines between 100 and 5000

select all lines less than or equal to 5000

select all lines greater than or equal to 5000

The name of a Geosoft Projection (.PRJ) file that describes the projection of the XYZ data file. This is only necessary if the data projection is different from the map projection. The map projection can be defined by the MDF file or by the PROJ command. If a projection is specified, the data will be re-projected to the map projection as it is read by the DXYZ command.