What is a SLDASM file?
A .SLDASM file is a SolidWorks Assembly. Dassault Systèmes developed this format for SolidWorks, a professional 3D Computer-Aided Design (CAD) software. An assembly file does not contain 3D geometry directly. Instead, it links multiple individual part files (.SLDPRT) together to form a complete mechanical model. The .SLDASM file stores the position, orientation, and mechanical relationships between these individual parts.
How to open SLDASM files?
The standard software to open and edit .SLDASM files is SolidWorks. You can also open these files using other professional CAD applications, such as Autodesk Inventor, Autodesk Fusion 360, or Onshape. If you only need to view the 3D model, you can use the free eDrawings Viewer.
Best practices and troubleshooting
The most common problem with .SLDASM files is missing parts. Because a .SLDASM file only references .SLDPRT files, opening an assembly without the corresponding part files will result in a broken model. To share an assembly correctly, use the "Pack and Go" tool in SolidWorks. This tool gathers the assembly file and all linked part files into a single folder or .ZIP archive.
Software and tools
Engineers rely on SolidWorks for mechanical engineering and product design. Viewers like eDrawings allow team members and clients to inspect the assemblies. viewer.online/sldasm analyzes .SLDASM files to identify their exact format and creator software, shows which programs can open the file, and usually previews it.
Summary
Because .SLDASM files use the known DOC format, viewer.online/sldasm can safely open and display them online, eliminating compatibility problems.