# Attach Xdata [GstarCAD 2026](Help%20System/GSTARCAD/2026/Index.md) → [User Guide](Help%20System/GSTARCAD/2026/User%20Guide/(User%20Guide).md) → [Express Tools](Help%20System/GSTARCAD/2026/User%20Guide/Express%20Tools/(Express%20Tools).md) → [Custom Tools](Help%20System/GSTARCAD/2026/User%20Guide/Express%20Tools/Custom%20Tools/(Custom%20Tools).md) The XDATA command is used to attach extended object data (xdata) to a selected object. Select object: Use an object selection method Input application name: Specify application name Enter an option [3Real/DIR/DISP/DIST/Hand/Int/LAyer/LOng/Pos/Real/SCale/STr/eXit] <eXit>: **Options**: **Application name:** An ASCII string up to 255 bytes long (group code 1000). **3Real:** 3 real numbers (group code 1010). **Dir:** A 3D World space direction (group code 1013). **Disp:** A 3D World space displacement (group code 1012). **Dist:** A distance (group code 1041). **Hand:** An object handle (group code 1005). **Int:** A 16-bit integer (group code 1070). **Layer:** A layer name (group code 1003). **Long:** A 32-bit signed long integer (group code 1071). **Pos:** A 3D World space position (group code 1011). **Real:** A real number (group code 1040). **Scale:** A scale factor (group code 1042). --- [Original help](https://www.gstarcad.net/help/GstarCAD_2026_en-US/detail/GUG_ET_CustomTools/Attach%20Xdata.html) · © Gstarsoft Co., Ltd.