# XDATA Command [GstarCAD 2027](Help%20System/GSTARCAD/2027/Index.md) → [Commands](Help%20System/GSTARCAD/2027/Commands/(Commands).md) → [X](Help%20System/GSTARCAD/2027/Commands/X/(X).md) ## Function Description: This command is used to attach extended object data (xdata) to a selected object. You can view the xdata attached to objects with the XDLIST command. ## Command Access: > **Icon:** / > **Menu:** Express > Tools > Attach Xdata > **Ribbon:** / > **Toolbar:** / > **Command:** XDATA > **Alias:** / ## Command Prompts: ``` Select object: ``` --- **Related Tasks：** - [To Work With Express Tools (GstarCAD 2026)](../../../2026/Commands/01%20Procedures/To%20Work%20With%20Express%20Tools.md) --- [Original help](https://www.gstarcad.net/help/GstarCAD_2027_en-US/detail/commandReferences_X/XDATA.html) · © Gstarsoft Co., Ltd.