What Is an EASM File?

A file with the EASM file extension is an eDrawings assembly file. It’s a representation of a computer-aided design (CAD) drawing, but it isn’t the full, editable version of the design. In other words, one reason EASM files are used is so that clients and other recipients can see the design but not have access to the design data. They’re a bit like Autodesk’s DWF format. Another reason EASM files are used is because they’re made up of compressed XML data, which makes them the perfect format for sending CAD drawings over the internet where download time/speeds are a concern.

How to Open an EASM File

eDrawings Viewer is a free CAD program from SolidWorks that will open EASM files for viewing. These files can also be opened with SketchUp, but only if it’s used with the eDrawings Publisher plug-in. The same goes for Autodesk’s Inventor and its eDrawings Publisher for Inventor plug-in. The eDrawings mobile app for Android and iOS can open EASM files, too. You can read more about this app on their respective download pages, both of which are available through that link. If you upload the file to Dropbox or Google Drive, you should then be able to import them into MySolidWorks Drive to view the drawing online.

How to Convert an EASM File

The EASM format was built for the purpose of viewing a CAD design, not for editing it or exporting it to some other 3D format. So, if you need to convert EASM to DWG, OBJ, etc., you’ll actually need to have access to the original file. However, the Windows View2Vector program is advertised as being able to export this file type to formats like DXF, STEP, STL (ASCII, binary, or exploded), PDF, PLY, and STEP. We haven’t tried it ourselves to see what this type of conversion actually accomplishes, but there is a 30-day trial if you want to try it out. eDrawings Professional can save an EASM file to non-CAD formats like JPG, PNG, HTM, BMP, TIF, and GIF. Also supported is an export to EXE, which embeds the viewer program in a single file—the recipient doesn’t even need to have eDrawings installed to open the assembly file.

Still Can’t Open the File?

If you can’t get the file to open properly, make sure you’re reading the file extension correctly. It’s really easy to confuse different formats for each other because the file extensions are similar. EAP and ACSM are two examples of this. Another is ASM, which might be an Assembly Language Source Code file.