step file not opening in sw2007

i have a step file sent by our supplier which i could notopen in the solid works 2007. an error file (*.err) is created andit say "


SolidWorks Corporation - STEP Processor Error Log
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STEP Post Processor
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STEP File Name: C:\Documents andSettings\Administrator\Desktop\VALVE BODY.STEP



Error: Incomplete file.
STEP-in did not complete successfully.
Context: Record ending on line number 1462
OR one of its fields.


what will be the problem? or is there any other way to open thisfile.

please let me know.

regards
SolidworksGeneral