sub assembly showing while importing step files

[ssreevalsan]

Once I open the STEP assembly file, it shows an assembly containing one sub-assemblie, as shown in the attached image.

How can I avoid this sub-assembly file?

[ssreevalsan]

attaching here with the screen short

[StephenW · Accepted solution]

https://community.ptc.com/t5/3D-Part-Assembly-Design/Step-file-alwaus-opens-with-extra-assembly-level/m-p/622562#M1156

[Catalina]

Hi @ssreevalsan,

I wanted to see if you got the help you needed.

If so, please mark the appropriate reply as the Accepted Solution. It will help other members who may have the same question.
Please note that industry experts also review the replies and may eventually accept one of them as solution on your behalf.
Of course, if you have more to share on your issue, please pursue the conversation.

Thanks,