Floor plan editing

[Maria Alexand23726011vrhv]

Hi,guys! could someone help me with clear steps to process a plan in adobe illustrator. I am at the beginning of learning the program and some commands do not help me much. To begin with, I exported the plan from Archicad and imported it into Illustrator. Here, however, I cannot process the lines. They appear in a rectangle with diagonals, which, whatever I do, cannot be processed. Thank you!

[Monika Gause]

It's a clipping mask.

What's more interestins: what's in the mask?

a placed PDF? Then you might be able to embed it and then release the mask

a pixel image? forget about it

just the artwork? release the mask

You can use the layers panel to analyze it:

https://youtu.be/Cfbw8bnMmLM 

[Anna Lander]

to which format did you export it from Archicad?