Replaces all instances of a specified block with an xref.
BLOCKTOXREF searches the entire drawing for references to a specified block name and replaces them with an xref that you specify. You can use this tool to unbind an xref, replacing the block with the original referenced drawing. Afterwards, you can use the PURGE command to remove the unreferenced block definition from the drawing.
See also the BLOCKREPLACE Express Tool.
blocktoxref.lsp