3me

.3me3D Metafile Exchange

Hewlett-Packard · 1992

Developer
Hewlett-Packard
Category
3D & CAD
MIME Type
application/vnd.hp-3dmetafile
First Released
1992
Open Format
Yes
File Signature
Hex: 01 02 00 00 00 00 00 00
At a Glance
.3me
3D Metafile Exchange

.3me files are a vector-based format for storing and exchanging 3D geometric data, primarily used in older CAD and graphics applications.

Reviewed on May 11, 2026
Compression
Binary
Transparency
N/A
Editability
Low
Best for
Legacy 3D data exchange

Key Features

  • Vector-based 3D graphics storage
  • Supports geometric primitives and attributes
  • Binary format for efficient data handling
  • Designed for exchange between 3D applications

Best For

  • Compatibility with older Hewlett-Packard graphics software
  • Precise storage of geometric definitions
  • Lightweight representation of simple 3D objects
  • Archival of 3D data from specific historical projects

Less Ideal For

  • Modern 3D game development
  • Complex scene rendering with advanced materials
  • Animation and character rigging
  • Interchange with widely used modern 3D software like Blender or Maya
  • Web-based 3D experiences

Common Use Cases

  • Storing 3D models for early CAD software
  • Exchanging 3D geometric data between compatible programs
  • Archiving 3D designs from legacy systems
  • Technical drawing and visualization in specific engineering fields

How to Open It

  1. Try opening with specialized CAD or 3D modeling software that supports legacy formats.
  2. Look for converters that might be able to translate .3me to more common formats like .OBJ or .STL.
  3. If you have the original HP software that generated the file, it will likely open it directly.

What is a .3me file?

The .3me file extension stands for 3D Metafile Exchange. It is a vector-based 3D graphics format developed by Hewlett-Packard. This format is designed to store and exchange 3D geometric data, allowing for precise representation of objects and scenes. It supports various graphical primitives and attributes crucial for 3D modeling and rendering. While not as widely adopted as some modern 3D formats, it played a role in early 3D graphics applications and CAD systems.

Programs That Open .3me Files

PlatformProgram
WindowsAutodesk AutoCADPaid
SolidWorksPaid

How to Convert .3me Files

FormatMethod
.STLCAD software with import/export capabilities, Online file converters
.OBJCAD software with import/export capabilities, Online file converters

Common Problems with .3me Files

⚠️ File not recognized by modern software.
Use a dedicated converter or older CAD software that supports .3me.
⚠️ Limited support for complex features.
Consider converting to a more feature-rich format like glTF or FBX if complex scenes are involved.

Frequently Asked Questions

Is .3me a common file format today?

No, .3me is considered a legacy format and is not widely used in modern 3D graphics workflows.

What kind of data does a .3me file contain?

It contains 3D geometric data, defined by a series of drawing commands and attributes, rather than a mesh or point cloud.

Technical Details

This format stores 3D information using a metafile approach, essentially a series of commands that describe 3D objects. It is a binary format, making it efficient for storage and retrieval. The structure allows for the representation of surfaces, curves, and other geometric entities.

Did You Know?

The .3me format was part of Hewlett-Packard's efforts to standardize 3D data exchange in the early 1990s.
It predates many widely adopted 3D formats used in gaming and animation today.

Security Information

As a data file format, .3me itself does not typically pose security risks. However, always be cautious when downloading files from untrusted sources, as they could potentially contain malicious code disguised as a .3me file.

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