import - What is the compression algorithm used in FBX file? -

i write imorter fbx-files, guided specification located on link https://code.blender.org/2013/08/fbx-binary-file-format-specification/ . says data sets can compressed (for example, array of vertices). ok. when exporting blender, compressed set of vertices, can not unpack them, because did not fit 1 library (dotnetzip, sharpziplib). what's wrong?

example:

note: vertex double type

u

ncompressed vertices in ascii fbx file:   -12.500000,-12.500000,0.000000,12.500000,-12.500000,0.000000,-12.500000,12.500000,0.000000,12.500000,12.500000,0.000000,-12.500000,-12.500000,25.000000,12.500000,-12.500000,25.000000,-12.500000,12.500000,25.000000,12.500000,12.500000,25.000000 

compressed binary data:

    [0] 120 byte     [1] 1   byte     [2] 99  byte     [3] 96  byte     [4] 0   byte     [5] 1   byte     [6] 205 byte     [7] 3   byte     [8] 96  byte     [9] 10  byte     [10]    78  byte     [11]    67  byte     [12]    120 byte     [13]    64  byte     [14]    113 byte     [15]    7   byte     [16]    28  byte     [17]    226 byte     [18]    7   byte     [19]    160 byte     [20]    226 byte     [21]    80  byte     [22]    121 byte     [23]    8   byte     [24]    15  byte     [25]    73  byte     [26]    61  byte     [27]    186 byte     [28]    248 byte     [29]    1   byte     [30]    136 byte     [31]    10  byte     [32]    152 byte     [33]    61  byte     [34]    150 byte     [35]    80  byte     [36]    121 byte     [37]    116 byte     [38]    243 byte     [39]    225 byte     [40]    226 byte     [41]    48  byte     [42]    245 byte     [43]    80  byte     [44]    117 byte     [45]    112 byte     [46]    113 byte     [47]    52  byte     [48]    125 byte     [49]    150 byte     [50]    14  byte     [51]    0   byte     [52]    146 byte     [53]    244 byte     [54]    12  byte     [55]    117 byte 

that data zlib stream , can decompressed zlib. decompressed result shown here in hex:

00 00 00 00 00 00 29 c0 00 00 00 00 00 00 29 c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 29 40 00 00 00 00 00 00 29 c0 00 00 00 00 00 00 00 00 00 00 00 00 00 00 29 c0 00 00 00 00 00 00 29 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 29 40 00 00 00 00 00 00 29 40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 29 c0 00 00 00 00 00 00 29 c0 00 00 00 00 00 00 39 40 00 00 00 00 00 00 29 40 00 00 00 00 00 00 29 c0 00 00 00 00 00 00 39 40 00 00 00 00 00 00 29 c0 00 00 00 00 00 00 29 40 00 00 00 00 00 00 39 40 00 00 00 00 00 00 29 40 00 00 00 00 00 00 29 40 00 00 00 00 00 00 39 40