aas

.aasAutoCAD Script File

Autodesk · 1982

Developer
Autodesk
Category
Programming
MIME Type
text/plain
First Released
1982
Open Format
Yes
File Signature
N/A (Plain text file)
At a Glance
.aas
AutoCAD Script File

An AAS file is a script for AutoCAD that automates drawing and design tasks.

Reviewed on May 27, 2026
Compression
Plain text
Transparency
N/A
Editability
High
Best for
Automating AutoCAD tasks

Key Features

  • Automates repetitive AutoCAD tasks.
  • Stores sequences of commands and user inputs.
  • Plain text format for easy editing.
  • Reduces manual effort and potential errors.

Best For

  • Automating repetitive drafting tasks in AutoCAD.
  • Users who need to perform the same sequence of actions frequently.
  • Creating custom workflows for specific design needs.
  • Ensuring consistency in drawing elements across projects.

Less Ideal For

  • Storing general-purpose scripts or code.
  • Sharing complex design data (use DWG or DXF).
  • Creating executable programs for general use.
  • Storing non-textual design information.

Common Use Cases

  • Batch processing of drawings (e.g., applying the same changes to multiple files).
  • Creating custom commands or macros within AutoCAD.
  • Automating the generation of standard drawing elements.
  • Setting up complex drawing environments consistently.

How to Open It

  1. Open AutoCAD and use the 'SCRIPT' command, then select your .aas file.
  2. You can also drag and drop the .aas file directly into an open AutoCAD session.
  3. Alternatively, you can open the .aas file in any plain text editor (like Notepad or VS Code) to view or edit the commands, but it will only run within AutoCAD.

What is a .aas file?

An AAS file is essentially a text file containing a sequence of commands designed to be executed by AutoCAD, a popular computer-aided design (CAD) software. These scripts automate repetitive tasks, allowing users to perform complex operations with a single command. Think of it as a macro for AutoCAD, where you record or write down a series of steps that the software will then follow precisely. This can save significant time and reduce the chance of human error in drafting and design projects.

Programs That Open .aas Files

PlatformProgram
WindowsAutoCADPaidOfficial
Notepad++Free
macOSAutoCAD for MacPaidOfficial
TextEditFree
LinuxAutoCAD LT (via Wine)PaidOfficial
GeditFree

Common Problems with .aas Files

⚠️ Script errors: Commands not recognized or incorrect syntax.
Carefully review the script in a text editor, ensuring each command matches AutoCAD's exact syntax and that the commands are available in your version of AutoCAD. Test commands individually on the command line first.
⚠️ Script runs but doesn't produce expected results.
Check for missing prompts or unexpected user input interruptions. Ensure the script is designed for the current drawing state and units. Add pauses or more explicit commands if necessary.

Frequently Asked Questions

Can I run an AAS file without AutoCAD installed?

No, AAS files are specifically designed to be executed by AutoCAD and require the software to be installed.

What's the difference between AAS and LISP files?

Both are used for automation in AutoCAD. LISP (.lsp) files contain code written in the AutoLISP programming language, offering more complex logic and functionality. AAS files are simpler, sequential command lists.

Can I edit an AAS file?

Yes, AAS files are plain text, so you can open and edit them with any standard text editor.

Technical Details

AAS files are plain text files that store a series of AutoCAD commands, including user inputs and prompts. They are interpreted and executed sequentially by the AutoCAD application, acting much like a batch file for a specific software environment. The syntax closely mirrors the commands you would type directly into the AutoCAD command line.

Did You Know?

AAS files share a similar purpose with .SCR (Script) files found in other software, acting as command-line automation tools.
The term 'AAS' likely stands for 'AutoCAD Automation Script'.

Security Information

AAS files themselves are generally safe as they contain only text commands. However, be cautious when running scripts from unknown or untrusted sources, as they could potentially execute commands that modify your drawings in unintended ways or trigger other malicious actions if combined with other exploits.

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