TPRP
64 - Filename (always null?) 4 - Type Code/Handler (PRPT) 4 - Class/Version (78 or 75) 4 - Null (Never used in Sims 1 or 2 formats) 4 - number of Param labels (description of Paramters passed into this tree) 4 - number of Local labels (description of Local Variables used by this tree)
var - Param label 1 ... var - Param label n var - Local label 1 ... var - Local label n
4 - Null (Reserved) var - Group of 1 byte param flags - appears to be one byte per Param label (eg. a file with no Param labels would not add anything, 1 Param label would insert a 0x01 here, 3 Param labels would insert 0x010101, etc.)(01 denotes turned on/used. otherwise 00) 4 - Display Code (always 0x00000005) (05 is standard, no highlighting etc. From TREE) 4 - Null (Reserved)
-- for each Param/Local label -- 1 - label length x - label