Can someone help me to exchange .iam format to sterp format?

recently i downloaded a reception desk from grabcad.com, and it was .iam format which is my nx siemens does not support. below im uploading reception desk with iam format. pls help me to exchange it to step. thanks in advance
Accepted answer

You can’t convert just the IAM (assembly) file by itself. You must also supply all the related IPT (part) files.
Models like this:
Reception Desk
Have the IAM file but no IPT files. This is useless even for someone with Inventor. It can’t be converted or used for anything.