+default is F8.2. @xref{Input and Output Formats}.
+
+@item EPOCH
+@anchor{SET EPOCH}
+Specifies the range of years used when a 2-digit year is read from a
+data file or used in a date construction expression (@pxref{Date
+Construction}). If a 4-digit year is specified for the epoch, then
+2-digit years are interpreted starting from that year, known as the
+epoch. If AUTOMATIC (the default) is specified, then the epoch begins
+69 years before the current date.
+
+@item RIB
+@anchor{SET RIB}
+
+PSPP extension to set the byte ordering (endianness) used for reading
+data in IB or PIB format (@pxref{Binary and Hexadecimal Numeric
+Formats}). In MSBFIRST ordering, the most-significant byte appears at
+the left end of a IB or PIB field. In LSBFIRST ordering, the
+least-significant byte appears at the left end. VAX ordering is like
+MSBFIRST, except that each pair of bytes is in reverse order. NATIVE,
+the default, is equivalent to MSBFIRST or LSBFIRST depending on the
+native format of the machine running PSPP.
+
+@item RRB
+@anchor{SET RRB}
+
+PSPP extension to set the floating-point format used for reading data in
+RB format (@pxref{Binary and Hexadecimal Numeric Formats}). The
+possibilities are:
+
+@table @asis
+@item NATIVE
+The native format of the machine running PSPP. Equivalent to either IDL
+or IDB.
+
+@item ISL
+32-bit IEEE 754 single-precision floating point, in little-endian byte
+order.
+
+@item ISB
+32-bit IEEE 754 single-precision floating point, in big-endian byte
+order.
+
+@item IDL
+64-bit IEEE 754 double-precision floating point, in little-endian byte
+order.
+
+@item IDB
+64-bit IEEE 754 double-precision floating point, in big-endian byte
+order.
+
+@item VF
+32-bit VAX F format, in VAX-endian byte order.
+
+@item VD
+64-bit VAX D format, in VAX-endian byte order.
+
+@item VG
+64-bit VAX G format, in VAX-endian byte order.
+
+@item ZS
+32-bit IBM Z architecture short format hexadecimal floating point, in
+big-endian byte order.
+
+@item ZL
+64-bit IBM Z architecture long format hexadecimal floating point, in
+big-endian byte order.
+
+Z architecture also supports IEEE 754 floating point. The ZS and ZL
+formats are only for use with very old input files.
+@end table
+The default is NATIVE.