A SOLIDWORKS add-in that enables saving BACK into an older version (backwards compatibility)


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BACKWORKS is a fully integrated SOLIDWORKS add-in that enables SOLIDWORKS to save files back into an older version (backwards compatibility).

Most Wanted Feature

Backwards compatibility of SOLIDWORKS files is a feature that has been requested for years.

Backwards compatibility enables saving 2017 files as 2016, 2015, 2014 or older versions of SW.

SOLIDWORKS has recently taken steps towards this direction: A SOLIDWORKS 2016 file can be opened in SOLIDWORKS 2015 SP5, for example.

But up until now there has been no attempt to develop a software that allowed saving back into older versions of SOLIDWORKS.


  • Enables Saving into an older version of SOLIDWORKS (e.g. Save 2017 file as 2016, 2015, 2014, 2013, 2012)
  • Convert files into a lower version of SW (e.g. Convert 2017 file to 2016, 2015, 2014, 2013, 2012)
  • Opening Future Version files in older versions of SOLIDWORKS (Open 2017 file in 2015 Version)

How it does it?

It adds in the SOLIDWORKS Save As menu the option Save As -> SOLIDWORKS “older version” (e.g. 2014), and stores the data as a .bkwprt (BACKWORKS Part Document).

On the receiving end of the file exchange, at the Open menu, it adds the option Open a .bkwprt file.

The procedure is as simple as that:

  1. File -> Save As -> SOLIDWORKS 2014(.bkwprt) (at some version 2016 - 2013)
  2. File -> Open -> filename.bkwprt (at an older version)

The BACKWORKS add-in needs to be installed in both versions of SOLIDWORKS


Check out the list below to see exactly which SOLIDWORKS features are supported in BACKWORKS 2016.

Current Status

For the time being, BACKWORKS enables saving only Part documents into up to 5 versions back (up to SOLIDWORKS 2012) in both 32- and 64-bit operating systems.

BACKWORKS 2017 supports more than 90% of all SOLIDWORKS features.

Future Goals

  • Improving the reliability of the software
  • Adding more Features to fit your needs and personal designing style
  • Supporting SOLIDWORKS Assembly and Drawing Documents

What's new in BACKWORKS 2017

Supported Features

2017 Features available in the upcoming 2017 version

  • Extrude
  • Revolve
  • Sweep
  • Loft
  • Boundary 2017
  • Extrude
  • Revolve
  • Sweep
  • Loft
  • Boundary Cut 2017
  • Fillet/Round
  • Chamfer
  • Hole wizard
  • Simple
  • Draft
  • Shell
  • Rib
  • Scale
  • Wrap
  • Split
  • Delete/Keep body
  • Cosmetic Thread 2017
  • Dome 2017
  • Indent 2017
  • Sweep Thread 2017
  • Intersect 2017
  • Solid Sweep 2017
  • Linear Pattern
  • Circular Pattern
  • Mirror
  • Sketch Driven Pattern
  • Curve Driven Pattern
  • Fill Pattern 2017
  • Delete
  • Move
  • Replace face 2017
  • Projected
  • Composite
  • Helix/Spiral
  • Curve Through Reference Points 2017
  • Plane
  • Axis
  • Point
  • Center of Mass 2017
  • Coordinate System 2017
  • Base Flange
  • Edge Flange
  • Miter Flange
  • Hem
  • Jog
  • Sketched Bend
  • Unfold
  • Fold
  • Lofted Bends
  • Closed Corner 2017
  • Corner_Relief 2017
  • WeldBead 2017
  • Rip 2017
  • Swept Flange 2017
  • Break Corner 2017
  • Corner Trim 2017
  • Line
  • Arc
  • Ellipse
  • Parabola
  • Spline
  • Structural Member 2017
  • Gusset 2017
  • EndCap 2017
  • Trim/Extend 2017
  • Lofted Surface 2017
  • Fill Surface 2017
  • Offset Surface 2017
  • Radiate Surface 2017
  • Revolved Surface 2017
  • Knit Surface 2017
  • Trim Surface 2017
  • UnTrim Surface 2017
  • Planar Surface 2017
  • Thicken 2017
  • Extruded Surface 2017
  • Swept Surface 2017
  • Extend Surface 2017
  • Thickened Cut 2017


The team behind BACKWORKS

From Engineers to Engineers

Our team consists of Engineers and Developers working in the field of 3D modeling.

Being ourselves Mechanical Engineers we came across the problem of SOLIDWORKS backwards compatibility and decided to finally do something about it.

BACKWORKS is the result of our honest efforts in the past 18 months- the small, but growing team behind BACKWORKS has been working intensively on developing this software, while maintaining full-time jobs and families.

We kindly ask for your Feedback

We sincerely hope that you find BACKWORKS useful and applicable to your company or personal workplace. We are looking forward to receiving your comments and suggestions, so do not hesitate to contact us.

Additionally, and since this is an entirely self-funded project, we would appreciate your support in form of a donation.


Please support us if you think BACKWORKS is on the right track solving the problem of SOLIDWORKS backwards compatibility


Spread the word

If you found BACKWORKS helpful, why not recommend it to your friends, colleagues or blog followers. There are many ways you can help our cause:

  1. Follow us on
  2. Share the installation link on your blog or on social networks.
  3. Discuss the benefits of installing BACKWORKS at your company or workplace.

Report bugs

You may encounter a situation that is new to us; therefore we rely on your bug report in order to fix the issue.

Please be sure to include all of the necessary information needed to reproduce the issue, (i.e the error log) and even better, the failed file.

Additionally, please be on the lookout for any follow-up questions we may have.


Bring in suggestions

There is always something that can be improved, so feel free to share your ideas with us. Your suggestions and constructive criticism are valuable

Last but not least, we encourage you to send us your feedback concerning which exact features (that suit your needs and personal CAD designing style) you would like to be included in a future version.


You can contact us if you have any questions or suggestions.


Amfitritis 8, P.O Box D6029, 57001 Thessaloniki, Greece

+30 2313 059662

+30 6976888187

+30 2313 059662

info@backworks.info, support@backworks.info

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