+=== 9^EXPORT_USERS [<filename>]^Export the users database to ascii
+Export the users database to a file in ascii format. If no filename
+is given then it will export the file to /spider/data/user_asc.
+
+If the file already exists it will be renamed to <filename>.o. In fact
+up to 5 generations of the file can be kept each one with an extra 'o' on the
+suffix.
+
+BE WARNED: this will write to any file you have write access to. No check is
+made on the filename (if any) that you specify.
+
+=== 0^FILTERING...^Filtering things in DXSpider
+There are a number of things you can filter in the DXSpider system. They
+all use the same general mechanism.
+
+In general terms you can create a 'reject' or an 'accept' filter which can
+have up to 10 lines in it. You do this using, for example:-
+
+ accept/spots .....
+ reject/spots .....
+
+where ..... are the specific commands for that type of filter. There are
+filters for spots, wwv, announce, wcy and (for sysops) connects. See each
+different accept or reject command reference for more details.
+
+There is also a command to clear out one or more lines in a filter and one
+to show you what you have set. They are:-
+
+ clear/spots 1
+ clear/spots all
+
+and
+
+ show/filter
+
+There is clear/xxxx command for each type of filter.
+
+For now we are going to use spots for the examples, but you can apply the
+principles to all types of filter.
+
+There are two main types of filter 'accept' or 'reject'; which you use depends
+entirely on how you look at the world and what is least writing to achieve
+what you want. Each filter has 10 lines (of any length) which are tried in
+order. If a line matches then the action you have specified is taken (ie reject
+means ignore it and accept means gimme it).
+
+The important thing to remember is that if you specify a 'reject' filter (all
+the lines in it say 'reject/spots' (for instance) then if a spot comes in that
+doesn't match any of the lines then you will get it BUT if you specify an
+'accept' filter then any spots that don't match are dumped. For example if I
+have a one line accept filter:-
+
+ accept/spots freq vhf and (by_zone 14,15,16 or call_zone 14,15,16)
+
+then automatically you will ONLY get VHF spots from or to CQ zones 14 15 and 16.
+If you set a reject filter like:
+
+ reject/spots freq hf/cw
+
+Then you will get everything EXCEPT HF CW spots, If you am interested in IOTA
+and will work it even on CW then you could say:-
+
+ reject/spots freq hf/cw and not info iota