Short answer - yes
Long answer - from my experience interacting directly with PyroSim users, the ability to import various drawing file formats is one of our most important features. PyroSim can't replace the expertise of a knowledgeable engineer, and the limitations of the underlying simulator mean that your expertise will be necessary to address any imperfections in the import process.
I'd suggest looking over the "Import CAD" tutorial from our PyroSim fundamentals guide, and don't hesitate to contact support@thunderheadeng.com directly if you have questions about any specific file formats.
https://support.thunderheadeng.com/tutorials/pyrosim/fundamentals/fundamentals/
Regards,
Jon