When I take this ls -l. This is result of plain2snt.out

...
-rwxrwxr-x 1 user user 40536 Jun 6 2006 plain2snt.out
...

However, when I take plain2snt.out, this error
bash: ./plain2snt.out: cannot execute binary file

Please help me to solve this.
Tks a lot

Please run
hexdump -bc plain2snt.out | head -10
and post output. Where did you get the file from, by the way? Maybe it really doesn't contain any executable program?

hexdump -bc plain2snt.out | head -10
0000000 177 105 114 106 002 001 001 000 000 000 000 000 000 000 000 000
0000000 177 E L F 002 001 001 \0 \0 \0 \0 \0 \0 \0 \0 \0
0000010 002 000 076 000 001 000 000 000 200 035 100 000 000 000 000 000
0000010 002 \0 > \0 001 \0 \0 \0 200 035 @ \0 \0 \0 \0 \0
0000020 100 000 000 000 000 000 000 000 350 167 000 000 000 000 000 000
0000020 @ \0 \0 \0 \0 \0 \0 \0 350 w \0 \0 \0 \0 \0 \0
0000030 000 000 000 000 100 000 070 000 010 000 100 000 036 000 033 000
0000030 \0 \0 \0 \0 @ \0 8 \0 \b \0 @ \0 036 \0 033 \0
0000040 006 000 000 000 005 000 000 000 100 000 000 000 000 000 000 000
0000040 006 \0 \0 \0 005 \0 \0 \0 @ \0 \0 \0 \0 \0 \0 \0

I had unzip it from GIZA toolkits, and after that I used "make" to install this toolkits

Hm, looks like at least it is intended to be executable.. Usually such a problem occurs when you try to execute a file that is neither ELF executable nor a script. Just in case, what does 'file' utility say about this file? I hope it says the same about /bin/sh (or whatever it points to if it is a symlink)? Does your compiler work fine on other programs?