sys-file-reader: Ignore subtype 24 written by SPSS 21.

[pspp] / doc / dev / system-file-format.texi

diff --git a/doc/dev/system-file-format.texi b/doc/dev/system-file-format.texi
index e98b718883e1ef7507e48c4f39fdc0d19fd9198f..062738181baa6923144e5af332c59355e6ee3a17 100644 (file)
--- a/doc/dev/system-file-format.texi
+++ b/doc/dev/system-file-format.texi
@@ -1253,7 +1253,9 @@ Record type.  Always set to 7.
 @item int32 subtype;
 Record subtype.  May take any value.  According to Aapi
 H@"am@"al@"ainen, value 5 indicates a set of grouped variables and 6
-indicates date info (probably related to USE).
+indicates date info (probably related to USE).  Subtype 24 appears to
+contain XML that describes how data in the file should be displayed
+on-screen.
 
 @item int32 size;
 Size of each piece of data in the data part.  Should have the value 1,