How to convert stl file to solid model

I have a cover from a impeller in stl file and i need to make some modifications in the cover, but solidworks dont allow me to import the file as solid body because have to many faces. Anyone can help me in this problem. I will try to upload the file in my personal area. Thanks for the help.

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5 Answers

When you import STL you can set the import option.
When you select "Open" and select the file then you can press on Option button and select from 3 option:
Import as Graphics Body
Import as Solid Body
Import as Surface Body

I think you selected the second.

Try others.

 
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As Graphics Body it works.
The only problem is that you can't modify

 
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I think it works as Surface Body too but it need too many time....
You should try and wait...

 
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I tried this method. I need to dimensions in the file. The STL files have too many surface. So I don't open it.

 
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I waited nine hours last day but I cant open file. Thanks for converting Graphics Body Damiano but I must modify it.

 
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