Hello,
 
I want to write .stp file manually. Does anybody knows how step files work or has already done such thing?
 
Thank you in advance

[QUOTE=EPPAR] Hello,
 
I want to write .stp file manually. Does anybody knows how step files work or has already done such thing?
 
Thank you in advance[/QUOTE]

I think you can't write manualy *.step file .
You can save drawing as *.stp from a programm that support this format file.