Issues with removing a block from a drawing template

[Steenix]

I have a drawing template that contains a block that I just cannot find or get rid of.

What I have tried:

Editing the block to contain a large circle to make it easier to locate - couldn't find it

Used the QSELECT command on every layout tab to try and select the block by its name - couldn't find it

Used BLOCKREPLACE to try and just replace it with a block I don't with to remove from the drawing - CAD couldn't find any blocks to replace

After all of this, I still cannot purge the block from my drawing.

I read that you can export the dwg to a dxf file and open it in Notepad to locate the block. I have done so and found the block name in Notepad, but I have no idea how to interpret the information in this file.

Any and all help is much appreciated. Thank you!

EDIT: I should note I am using Autocad Civil 3D 2012 - I posted here because this didn't seem like a Civil 3D issue as much as it is just a general CAD issue. Please correct me if I am wrong.

[doni49 · Accepted solution]

My first thought is that the block is nested inside of another block.  That would make it s that the block is "used" but you still can't see it.  Also C3D has styles that use blocks -- if any of those styles use this block, then that's another case of it being used.

There are two possibilities to check.  What is the block?

[Steenix]

Thank you for your reply!

The block is a "gas valve" block we made in-house. I can't imagine it is nested within another block, but I can actually think of a style that may be using it. I'm going to check right now.

EDIT: Yep! You were 100% correct, it was used by a point style. I can't believe I didn't think of that haha.

Thank you so much!!