How to delete child surface after split from big surface

[SandmanINV]

Hi people,

i use VBA editor to create lines, then split a big face to many child surfaces. Like this..

As you see, i have many surfaces have equal dimension and many surface unequal dimension.

I want to delete all surface have equal dimension automatically. 

How should i do now ? Thank you

[bradeneuropeArthur]

Hi,

Are these rectangle all separate surface?

[SandmanINV]

Hi there, thank for your reply.

I updated my file, you can download and open it. 

Thanks you.

[SandmanINV]

Here is my file.

I using inventor 2019. I upload step file and ipt file.

Thank you.