aeh

.aehAutoCAD Electrical ASCII File

Autodesk · 1990s

Developer
Autodesk
Category
Documents
MIME Type
text/plain
First Released
1990s
Open Format
Yes
File Signature
Not applicable (plain text file)
At a Glance
.aeh
AutoCAD Electrical ASCII File

An AEH file is a plain text configuration file used by AutoCAD Electrical for storing project-wide data and settings.

Reviewed on June 7, 2026
Compression
Plain text
Transparency
No
Editability
High
Best for
Configuration data

Key Features

  • Stores project-wide electrical design data and settings.
  • Plain text (ASCII) format for easy reading and editing.
  • Facilitates consistency across complex electrical projects.
  • Supports custom scripting and data integration.

Best For

  • Centralizing electrical project configurations.
  • Ensuring design consistency across multiple drawings.
  • Providing a human-readable format for configuration data.
  • Facilitating automation and custom tool development.

Less Ideal For

  • Storing actual CAD drawings (use DWG).
  • Storing large binary data or multimedia.
  • As a general-purpose document format for non-technical users.
  • As a primary data storage for individual graphic elements.

Common Use Cases

  • Managing shared component databases in electrical projects.
  • Defining project-wide wire styles and naming conventions.
  • Storing default settings for electrical symbols and reports.
  • Exporting and importing project configuration data between different users or systems.

How to Open It

  1. Open with AutoCAD Electrical by loading the project.
  2. View and edit with any plain text editor (e.g., Notepad, VS Code, Sublime Text).
  3. Import into other applications that can parse plain text configuration files.
  4. Use within scripts designed to manage AutoCAD Electrical projects.

What is a .aeh file?

An AEH file is an ASCII text file used by AutoCAD Electrical, a specialized CAD software for electrical design. It stores project-wide data and settings, allowing for consistency across large electrical schematics and panel layouts. These files are crucial for managing shared information, such as component libraries, wire types, and other project-specific parameters. Because they are plain text, they can be easily read, edited, and even used for scripting or custom reporting, making them a flexible part of the AutoCAD Electrical workflow.

Programs That Open .aeh Files

PlatformProgram
WindowsAutoCAD ElectricalPaidOfficial
NotepadFree
Visual Studio CodeFree
macOSTextEditFreeOfficial
Visual Studio CodeFree
LinuxGeditFreeOfficial
Visual Studio CodeFree
AndroidQuickEdit Text EditorFree
iOSNotesFreeOfficial
Textastic Code EditorPaid

How to Convert .aeh Files

FormatMethod
.TXTSave As (Text Editor), Copy/Paste (Text Editor)

Common Problems with .aeh Files

⚠️ File not opening correctly in AutoCAD Electrical.
Ensure the AEH file is correctly associated with your AutoCAD Electrical project and that you are using a compatible version of the software. Corrupted files may need to be restored from backup.
⚠️ Accidental modification of critical project settings.
Always back up AEH files before making manual edits. Understand the structure and purpose of each setting before altering it.
⚠️ Encoding issues when opened in different text editors.
Ensure your text editor is set to 'ASCII' or 'UTF-8' encoding to avoid display problems. AutoCAD Electrical typically uses ASCII.

Frequently Asked Questions

What is the primary purpose of an AEH file?

An AEH file stores project-wide data and settings for AutoCAD Electrical, ensuring consistency in electrical designs.

Can I edit an AEH file with any text editor?

Yes, AEH files are plain text (ASCII) and can be opened and edited with standard text editors like Notepad or VS Code.

Is an AEH file the same as a DWG file?

No, AEH files contain configuration and project data, while DWG files contain the actual AutoCAD drawing geometry.

Technical Details

AEH files are structured as plain text (ASCII) documents, making them human-readable and easily parsed by other applications or scripts. They contain key-value pairs and hierarchical data that AutoCAD Electrical uses to manage project standards and shared information. The specific format can vary slightly between AutoCAD Electrical versions but generally remains consistent for core project data.

Did You Know?

The AEH format's plain text nature makes it ideal for version control systems.
Custom scripts can leverage AEH files to automate repetitive tasks in AutoCAD Electrical projects.

Security Information

AEH files are plain text and do not inherently contain executable code. However, like any configuration file, malicious editing could alter software behavior. Only open AEH files from trusted sources or after verifying their integrity.

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