+@node Variable Sets Record
+@section Variable Sets Record
+
+The SPSS GUI offers users the ability to arrange variables in sets.
+Users may enable and disable sets individually, and the data editor
+and analysis dialog boxes only show enabled sets. Syntax does not use
+variable sets.
+
+The variable sets record, if present, has the following format:
+
+@example
+/* @r{Header.} */
+int32 rec_type;
+int32 subtype;
+int32 size;
+int32 count;
+
+/* @r{Exactly @code{count} bytes of text.} */
+char text[];
+@end example
+
+@table @code
+@item int32 rec_type;
+Record type. Always set to 7.
+
+@item int32 subtype;
+Record subtype. Always set to 5.
+
+@item int32 size;
+Always set to 1.
+
+@item int32 count;
+The total number of bytes in @code{text}.
+
+@item char text[];
+The variable sets, in a text-based format.
+
+Each variable set occupies one line of text, each of which ends with a
+line feed (byte 0x0a), optionally preceded by a carriage return (byte
+0x0d).
+
+Each line begins with the name of the variable set, followed by an
+equals sign (@samp{=}) and a space (byte 0x20), followed by the long
+variable names of the members of the set, separated by spaces. A
+variable set may be empty, in which case the equals sign and the space
+following it are still present.
+@end table
+