【新手求助】如何用VB2008修改指定文本文件？？

比如一个文本是这种格式：

     “禁用 URL 识别
       禁用 Smilies
                                      禁用 BBcode
                                 --------------------


          -*-      -*-           -*-             -*-        -*-        -*-      
        YXZX   2679569.2323     517543.8709
        EJYZ   2686306.3177     492512.7510
                                               5387.2310   51.074396 E010
        E010   2689687.1862     496707.0312
                                               1784.1803   57.510226 E009
                                              16467.3019  263.412346 JTXX
                                               3743.7171  142.502374 E004
        E009   2690636.5992     498217.6319
        HSFD   2715606.4744     516496.0193
                                              24908.1300  225.020272 E004
                                              24679.9684  233.403910 E008
                                              20448.9613  221.153155 E007
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       ……”

当然前后还有很多垃圾信息，我只想得到这些信息并输出到文本：
        “YXZX   2679569.2323     517543.8709
          EJYZ   2686306.3177     492512.7510
          E010   2689687.1862     496707.0312
          E009   2690636.5992     498217.6319
          HSFD   2715606.4744     516496.0193”

请问高手要怎么操作。。？能否告诉我大概的思路、程序流程，谢谢。