how to check idf geometry and construction

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Hello

I am building a service for Green Building consultants, that generate idf files for them according to plans and properties they give me. The service Is for modeling, and after they will say ok about it, I will run the simulation and provide a report for the standard office for them.

I remembered there were simple option for them to open the IDF file and check my geometry work and constructions easily. but now I see sketchup free is only online. can I load an IDF file there? I am looking for easy way for them to check my work.

Please advice