How to open lock of Blocks

I m having few dwgs in autocak . they are all block lock. I m not able to explode the block and not able to change.

3 Answers

I found a solution but you have to copy the whole drawing to be able to maximize the editing. The command that I'm talking about is the "NCOPY" command but there is a downside. You have to pick every single object because I think there is no 'quick select multiple option' while you are in the command. The turning of layers on and off would go in handy for this attempt.
Good luck :)

JUST EXPLODE THE BLOCKS GEOMETRY

x(xplode) enter then select which one you want to un block then press enter