ZOO
---
        ZOO file header sturtures

        Master Header
        ------------- 
        Byte number      Value(s)        Meaning
        --------------------------------------------------------------
        0-19             ---             Archive header text
        20-23            $A7DCFDC4       File signature 
        24-27            ---             pointer to 1st header 
        28-31            ---             pointer to 1st header - 1 
        32               ---             version making archive 
        33               ---             minimum version needed to extract 
 
        File Header
        ----------- 
        Byte number      Value(s)        Meaning
        --------------------------------------------------------------
        0-3              $A7DCFDC4       signature 
        4                ---             type of directory entry 
        5                0-1             Compression method 
        6-9              ---             position of next dir entry
        10-13            ---             position of header
        14-15            ---             Date
        16-17            ---             Time
        18-19            ---             CRC-16 
        20-23            ---             Uncompressed size 
        24-27            ---             Compressed size 
        28               ---             version that made this file 
        29               ---             minimum version needed to extract 
        30               0-1             1 if file deleted from archive 
        31-34            ---             pointer to comment, 0 if none 
        35-36            ---             length of comment 
        37-XX            ---             path/filename 

        Compression Method 

        NAME        DESCRIPTION 
        ----------- -------------------------------------------- 
        Stored      No compression used 
        Crunched    Packing, LZW, 4K buffer, var len (9-13 bits)