Open it in
SolidWorks 2018.

Saved in SolidWorks 2019–2026? SolidWorks 2018 opens a STEP of it as a solid body, usually on the part's own surfaces. SolidWorks 2018 is eight releases behind 2026, the widest gap here; for a 2026 part, SolidWorks itself offers only a neutral file.

2 solid-geometry conversions a day with no account. Parts only, no SolidWorks needed.

No account needed
Drop a SolidWorks 2019–2026 part.sldprt · parts only · up to 200 MB

On our servers. No account: deleted within 24 hours. Signed in: kept until you delete them. Never shared or used for training.

ResultSTEP (usually exact)

A STEP of the part — usually its own surfaces, planes, cylinders, cones and splines as modelled — that SolidWorks 2018 opens directly as a solid body. Native SolidWorks 2018 files are coming.

No feature tree: the finished shape, not the steps. Exact whenever the part's solid can be read; otherwise its surfaces are rebuilt from the part's display mesh.

ComparedFrom 8 newer releases

What a SolidWorks 2018 user can do, by the release that saved the part.

Saved inSolidWorks' own wayHere
SolidWorks 2019Opens read-only in 2018 SP5STEP (usually exact)
SolidWorks 2020Only a STEP exported from 2020STEP (usually exact)
SolidWorks 2021Only a STEP exported from 2021STEP (usually exact)
SolidWorks 2022Only a STEP exported from 2022STEP (usually exact)
SolidWorks 2023Only a STEP exported from 2023STEP (usually exact)
SolidWorks 2024Only a STEP exported from 2024STEP (usually exact)
SolidWorks 2025Only a STEP exported from 2025STEP (usually exact)
SolidWorks 2026Only a STEP exported from 2026STEP (usually exact)
  • Future Version — from 2018 SP5, a 2019 part opens read-only: measure it, not edit it.
  • Save As previous version — no release reaches 2018.
  • Here — no SolidWorks and nobody else: a STEP today, a native 2018 part when it is ready.
Your fileWhich release saved it
  1. In Windows File Explorer, right-click the part, then Properties and Details: SW Last saved with names the release.
  2. For a folder of parts, add SW Last saved with as a column in the Details view.
  3. Or drop it above. The converter reads it and says Saved in SolidWorks 2026, or that it already opens in 2018.

Some tools show an internal number instead: SolidWorks 2018 is 11000.

Questions7 answered
Can SolidWorks 2018 open a file from a newer version?
Only a 2019 part, read-only, from 2018 SP5 on. A part saved in 2020–2026 is refused.
How do I convert a SolidWorks 2026 part to 2018?
Native 2018 files are not available yet. Convert it to STEP above, then open the STEP in SolidWorks 2018: it arrives as a solid body, usually on the part's own surfaces.
Can't SolidWorks' own Save As do it?
No. Save As previous version arrived in SolidWorks 2024 and reaches two releases back, so no release can save a part for 2018.
Is the feature tree kept?
No. You get the finished shape as an imported solid — planes, cylinders, cones and splines exact — not the features that built it.
What is SolidWorks version 11000?
SolidWorks 2018. Some tools show a release as an internal number that rises by 1000 a year, so 2026 is 19000.
Does it work for assemblies?
Not yet — parts only. An assembly holds no part geometry: each part is its own file, and each can be converted here.
Is it free?
Yes to start: 2 solid-geometry conversions a day with no account, and 4 a day with a free one; past that each costs 4 credits, and Maker includes them. Checking which release saved a part is free.

SOLIDWORKS® is a registered trademark of Dassault Systèmes SolidWorks Corp. MeshWeave is an independent tool and is not affiliated with, endorsed by, or sponsored by Dassault Systèmes.