# XOPEN Command [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [Commands](Help%20System/GSTARCAD/2027/Commands/(Commands).md) **Function Description:** This command is used to open selected drawing reference (external reference) in new window. **Command Access:** > **Icon:** / > **Menu:** Tools > Xref and Block In-place Editing > Open Reference > **Ribbon:** / > **Toolbar:** / > **Command:** XOPEN > **Alias:** / **Command Prompts:** ``` Select Xref: ``` --- **Related References：** - [Commands about Editing External References (GstarCAD 2026)](../../2026/Commands/Commands%20about%20Editing%20External%20References.md) **Related Tasks：** - [To Edit an Xref in a Separate Window (GstarCAD 2026)](../../2026/Commands/To%20Edit%20an%20Xref%20in%20a%20Separate%20Window.md) --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/commandReferences/XOPEN.html) · © Gstarsoft Co., Ltd.