The Edit menu contains functions that are used to control how the WzPreview Tool interprets the data it reads from the external file:

Define Header—Interactively define the file header.

Define Record—Interactively define a data record in the file.

Define Field—Interactively define individual fields within a data record.

Select Area—Interactively select a region.

Clear—Clear whichever region is selected in the display area. Remember that the definition of any variable associated with a field that is cleared is lost.

Clear All—Clear the definitions of the header, the record, and all fields.