Project file name: 
Date:              15:04:55 2011年5月28日
Table:   MillTable_1    Layer:   All Layers
Mill Usage:
Table #  Tool Ref   Tool #           Size           Exp Ord     Plunges       Meters Cut
=======  ========   ======           ====           =======     =======       ==========
   1         1         2             0.80               1           20            0.523
   1         2         3             1.00               2          150            1.900
   1         3         4             2.00               3           60            1.976
   1         4         5             1.60               4            5            3.997
===========================================================  ==========    ==============
                                                    Totals:        235            8.395

怎么提取以数字开始的特定行？