What is the XV3 file format?
An .xv3 file is a proprietary binary 3D geometry file produced by Lattice Technology's XVL (eXtensible Virtual world description Language) format suite. The .xv3 variant is the highest-fidelity tier in the family, known as P-XVL (Precise XVL). It preserves curved-surface data using Gregory-patch free-form surfaces (equivalent to NURBS-class accuracy), full topology, face/edge/vertex data, and rounding weights from the original CAD source.
Lattice Technology, Inc. was founded in 1997 as an Iwate University spin-off in Japan to solve the problem of sharing large industrial CAD assemblies - often gigabytes in size - as lightweight files without sacrificing dimensional accuracy. Lattice claims compression ratios up to 1/100th of the original file size while maintaining 0.01 mm accuracy.
The XVL format family uses numbered extensions to represent different fidelity levels:
.xv0,.xv1,.xv2- progressively reduced polygon mesh LOD (level of detail).xv3- precise curved-surface geometry (P-XVL, highest fidelity).xvz- compressed XVL archive
.xv3 files are used in digital manufacturing workflows as a downstream delivery format from major CAD platforms such as CATIA, NX, and SOLIDWORKS, supporting technical documentation, augmented reality, and process planning. Adobe previously included XVL embedding support in Acrobat 3D for 3D PDF creation. The format specification is proprietary and not publicly documented.
Security & safety
RISK: LOWProprietary 3D geometry file; not executable. No known security issues specific to .xv3 files.
Format details
in a nutshellPrograms that open XV3 files
Windows3 apps
XVL Player
Free Download the free XVL Player from lattice3d.com; open .xv3 for viewing and basic navigation.
XVL Studio Pro / Standard
Paid Open the .xv3 file directly; full editing, sectioning, BOM, and technical illustration output.
Adobe Acrobat (3D PDF embedding, legacy)
Paid Acrobat 3D (discontinued product line) could import XVL into 3D PDF. Current Acrobat DC can open PDFs containing embedded XVL but cannot import .xv3 directly. 
macOS1 app
Adobe Acrobat (view 3D PDF only)
Paid Can open 3D PDF files containing embedded XVL content for viewing; no direct .xv3 import on macOS. Technical details
deep spec| Format tier | P-XVL (Precise XVL) - highest-accuracy variant in the XVL extension family |
| Surface representation | Gregory-patch free-form surfaces (Lattice Surface), equivalent to NURBS-class accuracy |
| Sibling formats | .xv0 / .xv1 / .xv2 = reduced polygon LOD meshes; .xvz = compressed XVL archive |
| Claimed compression ratio | Up to 1/100th of source CAD file size (proprietary algorithm) |
| Dimensional accuracy | 0.01 mm maintained through proprietary compression |
| Source CAD platforms | CATIA, NX, SOLIDWORKS, Creo (converted via Lattice XVL conversion tools) |
| Encoding | Proprietary binary; format specification not publicly disclosed |
| Magic bytes | None publicly documented |
| Typical size | 500 KB - 50 MB (compressed from GB-scale industrial CAD assemblies) |
| Platform | Windows (XVL toolchain is Windows-only) |
| Developer | Lattice Technology, Inc. (Japan; Iwate University spin-off, founded 1997) |
| 3D PDF support | Adobe Acrobat 3D (legacy) embedded XVL via Lattice plug-in for 3D PDF workflows |
| Use cases | Technical documentation, AR/VR visualization, digital manufacturing review, 3D PDF embedding |
| Released | late 1990s (XVL technology; Lattice Technology founded 1997) |
| Latest version | XVL format current as of 2024 (no public version numbering) |
| Specification | www.lattice3d.com |
XV3 conversions
Community Q&A
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