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Software That Opens & Edits X_T Files (9 Tools, 2026)

X_T (ASCII) and X_B (Binary) are the native geometric kernel formats for Siemens Parasolid, the modeling engine that powers SolidWorks, Siemens NX, Solid Edge, Onshape, and over 300 other commercial CAD applications. Because it represents precise boundary representation (B-Rep) solid geometry, Parasolid files are the highest-fidelity neutral exchange format for transferring models between systems sharing the Parasolid kernel. Using X_T avoids the typical translation errors and topology issues that occur when converting to generic formats.

Frequently asked

Why is X_T preferred over STEP for exchanging models between SolidWorks and Solid Edge?
Because both SolidWorks and Solid Edge are built on the Parasolid geometric kernel, transferring files via X_T is native and lossless. Converting to STEP introduces a translator layer that can occasionally fail or create minor face errors.
Can X_T files store parametric feature design history?
No. While X_T preserves mathematically perfect boundary surfaces, volumes, colors, and assembly hierarchies, it does not store the parametric feature history tree or assembly constraints.

Full read & write support (6)

  • O
    Onshape logo
    OnshapeRead & Write
    from $1500 · Web / iOS / Android · ★ 4.9

    The professional CAD system built for agile cloud development.

  • R3
    Rhino 3D logo
    Rhino 3DRead & Write
    from $995 · Windows / macOS · ★ 4.9

    The industry standard for complex NURBS modeling and computational design.

  • S
    SolidWorks logo
    SolidWorksRead & Write
    from $1295 · Windows · ★ 4.9

    The de-facto industry standard for 3D parametric mechanical design.

  • SN
    Siemens NX logo
    Siemens NXRead & Write
    from $6000 · Windows / Linux · ★ 4.8

    Powerful high-end CAD/CAM/CAE suite for advanced manufacturing.

  • K
    KOMPAS-3D logo
    KOMPAS-3DRead & Write
    from $3150 · Windows · ★ 0.0

    Professional 3D CAD software for mechanical engineering with parametric modeling, solid/surface/sheet metal design, and integrated analysis tools.

  • TC
    T-FLEX CAD logo
    T-FLEX CADRead & Write
    Perpetual · Windows · ★ 0.0

    Full-function parametric CAD software with Parasolid-based 3D modeling, powerful 2D drafting, and integrated analysis tools for mechanical design.

Read-only / viewers (3)

  • F3
    Fusion 360 logo
    Fusion 360Read Only
    from $85 · Windows / macOS / Android / iOS · ★ 4.8

    The cloud-native powerhouse for integrated CAD, CAM, and CAE.

  • PC
    PTC Creo logo
    PTC CreoRead Only
    from $2430 · Windows · ★ 4.8

    The original parametric 3D CAD powerhouse.

  • AI
    Autodesk Inventor logo
    Autodesk InventorRead Only
    from $315 · Windows · ★ 4.7

    Professional-grade 3D mechanical design and simulation.

Need a specific conversion?

Our interactive CAD Matchmaker filters all 9 X_T-compatible platforms against your budget, hardware configuration, and precise parametric drafting needs.

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