You are apparently using Seasonal Analysis program (SNX files).  The problem is in the outputs name you selected.  In the file in XBUILD, go to Simulation Options and change the simulation output naming from experiment to "default".  I think that is the problem.  In one form it gives you these names XXXX0001.OPG (plantgro.out file), following the exact name of your *.SNX file.  In the other output, it gives you OVERVIEW.OUT and PLANTGRO.OUT.
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From: DSSAT - Crop Models and Applications [[log in to unmask]] on behalf of Moamen Mohamed [[log in to unmask]]
Sent: Thursday, February 16, 2012 11:11 AM
To: [log in to unmask]
Subject: Re: VERY IMPORTANT

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Subject: VERY IMPORTANT



Welcome, prof. gerrit.
How are you ? I hope you are well every time
my name is Moamen Mhamed , I am from Cairo ,Egypt.
Iam teaching assistant at AL -Azhar Univ. Agriculture Colloge , Cairo ,Egypt.
 My study on DSSAT program ( My Master),
In fact , when I do run for DSSAT - CERES WHEAT MODELS . shows many of proplems with strange extensions file like( OEB file
-OEV file -OMO file - OOV file - OPG file ), as well as , the presence of thes extensions appeare again  in DSSAT SIMULATION (Analysis).
please, How to make run without appeare thes file ?
Thank you very much for my help.
regards
Moamen Mohamed
Cairo , Egypt.