Strange objects during PURGE, that I couldn't find

[dorogann]

Hello, when I'm trying to PURGE my drawing(because I don't need some dimensions style) I saw that this dimensions located on some strange "objects"(they starts with AEC_...) , that I couldn't see in my autocad file. Could somebody tell me what this kind of elements and how to search them in the file?

[ChicagoLooper]

Looks like your drawing was created (or edited in AutoCAD Revit). Plain vanilla Acad either won’t display those objects correctly or not display them at all. 

[cadffm · Accepted solution]

That's how Architecture store some data (and some other programs with AEC core parts),

so it is nothing you can see directl.

If you are using plain AutoCAD: Use Command: -EXPORTTOAUTOCAD to get rid of AEC content. (this command create a new DWG)

Is it purgeable in this file?

[dorogann]

Wow, thank you, it works