dxf
Drawing Exchange Format (AutoCAD|AutoSketch)
DXF
Data/Drawing Exchange/Interchange Format
SDXF
Structured Data Exchange Format
AADP
Administrative Automatic Data Processing
AAL
Asynchronous transfer mode (ATM) Adaptation Layer
AAL1
Asynchronous transfer mode (ATM) Adaptation Layer 1
AAL2
Asynchronous transfer mode (ATM) Adaptation Layer 2
AAL3
Asynchronous transfer mode (ATM) Adaptation Layer 3