请教高手关于ascii格网文件的格式转换！

<P>在ARC GIS中，可以把GRID文件转换为ARCII文件进行储存，如何再把ARCII文件</P>
<P>转换为以Tab或逗号分隔的txt文件！！！！！请大侠支招！！！！！</P>

<P>用文本编辑器打开，格式一般如下，不知道是否满足需求？</P><PRE><CODE>NADCON EXTRACTED REGION          NADGRD

37 21 1 -122.00000 .25  32.00000 .25  .00000

.007383 .004806 .002222 -.000347 -.002868
-.005296 -.007570 -.009609 -.011305 -.012517
-.013093 -.012901 -.011867 -.009986 -.007359
-.004301 -.001389 .001164 .003282 .004814
.005503 .005361 .004420 .002580 .000053
-.002869 -.006091 -.009842 -.014240 -.019217
-.025104 -.035027 -.050254 -.072636 -.087238
-.099279 -.110968</CODE></PRE>

<P>asc 文件是这样的：</P>
<P>NCOLS 63<BR>NROWS 63<BR>XLLCORNER 433590.3226<BR>YLLCORNER 3750290.3226<BR>CELLSIZE 19.3548<BR>NODATA_VALUE -99<BR>124.199 123.941 122.893 121.031 120.121 120.227 120.313 117.768 117.614 118.299 118.918 119.303 119.678 119.431 119.185 119.262 119.202 118.821 118.551 118.156 117.041 115.784 114.498 113.211 110.823 109.185 107.600 106.416 105.582 104.951 104.094 103.923 103.993 104.299 104.917 104.645 104.982 103.364 103.368 102.545 102.442 105.087 100.503 100.045 99.528 102.285 102.070 104.052 103.928 103.806 108.440 108.440 -99.000 -99.000 -99.000 -99.000 -99.000 -99.000 -99.000 -99.000 -99.000 -99.000 -99.000 </P>
<P>我想让它转换成这样的：</P>
<P>x,y,z</P>
<P>433830.8604,3751472.988,122.78 <BR>433814.3693,3751363.283,110.16 <BR>433802.7043,3751282.386,137.02 <BR>433778.9199,3751188.262,119.89 <BR>433756.1220,3751103.005,97.94 <BR>433739.7609,3751012.158,108.52 <BR>433711.3960,3750924.721,82.52 <BR>433685.6436,3750813.972,93.03 <BR>433942.6108,3751312.473,107.80 <BR>433921.6032,3751218.329,88.66 <BR>433893.9882,3751105.373,103.72 <BR>433857.0905,3750988.045,117.93 </P>