- AutoCAD 2007
An XREF in AutoCAD 2007 will not detach.
If an XREF’s name contains square brackets – ‘[‘ or ‘]’ – AutoCAD 2007 will no detach that XREF. This is a bug. Also a # in the name of the xref will cause the same problem.
Rename the XREF and remove the square brackets. The XREF can now be detached.