How to get rid of unwanted layers?

[Oscar]

I am cleaning up a survey file and here are tons of unwanted layers

[ammobake]

use PURGE command, click Purge all.

usually that's enough.  But you might have nested layers it just depends whats referenced (if anything).

 

Sometimes it's necessary to purge layers from other drawings too.  For example, if you have 20 unused layers in a block you might not be able to purge the layer even though nothing in your drawing is on that layer.  With hundreds of layers it can get pretty complicated if you're using blocks and XREF's, dynamic blocks, etc..  But usually not a huge deal.

 

ChriS

[steven-g]

If the layers are used, and you just have too many! then maybe the layer merge command could help.

[BIGAL]

if you are using Civ3D you can not just purge layers they will remain do purgestyles 1st then purge. 200 down to 20.