how to can i make holes about 22000 pieces (in solidworks)


Here is a way I did something, I do not know if its useful to you. And it will probably not be usable for simulation.
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Step 1:
1. Create a small part of the surface you want to create, here I have 100 holes. Save the part as step format or parasolid.
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Step 2:
2.Close the part and import the step file into solidworks.
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Step 3:
3.Create a pattern and use the body pattern option.
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Step 4:
4.Use features/combine to create one body from all the small bodies.
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Step 5:
5. Save the part again as step. Next time you import the new step file and save it in solidworks format it will not rebuilt all the time. It will take a lot of time to save it though. And it is still pretty slow to load and handle.