# Convert BLOCK to XREF [GstarCAD 2017](Help%20System/GSTARCAD/2017/Index.md) → [What's new](Help%20System/GSTARCAD/2017/What's%20new/(What's%20new).md) → [Additional Pages](Help%20System/GSTARCAD/2017/What's%20new/Additional%20Pages/(Additional%20Pages).md) ## Convert BLOCK to XREF Replace all instances of a standard block with an xref. Unbind xrefs that are bound. **Menu:** Express\>Blocks\>Convert Block to Xref **Command Entry:** BLOCKTOXREF  BLOCKTOXREF searches the entire drawing for references to a specified block name and replaces them with an xref that you specify. You can have the unreferenced block purged when done. In BLOCKTOXREF dialog box. Select a block to replace: Table and 4 chairs. Then select: OK  In Select a Xref file. Select the Xref you want. Then select: open   Purge unreferenced items when finished? Yes/No --- Gstarsoft Co.,Ltd