Any .Net API to export rvm?

Slowness is purely depends on the machine that generating the review and its environment like network speed

also majorly the model content with more negative primitives,The user has to debug the specific site/zone taking much time and reason for delay even in TTY mode.

Even Im also looking for a specific API

No Addin required, just PML export Rvm, with attribute, and export to navis with one routine pml. 

Yes you can use pml to do this routine task.
But as I have test that c# is 4 times faster than pml in att dump task.

So I wonder if we can use pure .net api to export rvm.
Especially when you have a lot of rvm and att files to export.

4 times faster?
I reduced dump extraction from 4 hours to 5 minutes.
I've also tried to find out if it's possible to extract rvm by C#, but I haven't been able to find much.
If anyone knows, and can share, it would be great.

Great to hear, then I know my code have huge room to optimise.