usr/doc/px/table3.1.n

.TS
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\-108   FNAME   Text name of associated UNIX file
\-30    LCOUNT  Current count of lines output
\-26    LLIMIT  Maximum number of lines permitted
\-22    FBUF    UNIX FILE pointer
\-18    FCHAIN  Chain to next file
\-14    FLEV    Pointer to associated file variable
\-10    PFNAME  Pointer to name of file for error messages
\-6     FUNIT   File status flags
\-4     FSIZE   Size of elements in the file
0               File window element
.TE