EASM File Extension

EDrawings Assembly Format
- File Type easm
- Developer Dassault Systemes
- Popularity
- Application SolidWorks
- Category CAD, CAM and CAE Files
- Format Binary
What is a EASM file?
The EASM extension is related to EDrawings Assembly Format and is classified in the CAD, CAM and CAE Files category, which contains 148 files.
The EDrawings Assembly Format (EASM) was developed by Dassault, which created file format and 6 programs to work with them.
EASM files are supported by Windows and Mac OS. To open a EASM file, you can choose from 4 programs such as SolidWorks, SketchUp and eDrawings Viewer.
File Signature
HEX code: 3B 3B 20 48 53 46 20 56. ASCII code: ;;.HSF.V.
Programs that support EASM files
How to open a EASM file?
If you cannot open a EASM file, it is most often due to missing software. Select a program from the list according to your operating system. Then go to the official website of the program developer, download it, and install it on your device.
SolidWorks, SketchUp and eDrawings Viewer stand out as the preferred programs to manage EASM files effectively. To install the current version of SolidWorks, go directly to the official SolidWorks website. The universal package for all operating systems is available there.
After successful installation, your operating system should seamlessly handle EASM files via SolidWorks.
Set SolidWorks as the default EASM program
Change Default Program on Mac
- Right click or Control + left click on the desired EASM file;
- Choose "Open in Application" and click "Other";
- Go to the lower section of the window, where you will find the "Enable" menu. By default, it is set to "Recommended Programs";
- Select "All Programs" from this menu and proceed to search for SolidWorks. Check the box next to "Always open in app" to set it as the default option.
Set default programs for Windows
- Start by right-clicking on your EASM file, then select the "Open with" option and choose "Choose another app" from the menu that appears;
- In the pop-up window, select the SolidWorks application;
- Check the "Always use this application" checkbox, and then click "OK" to apply the selected application as the default for opening EASM files.
Convert files to and from EASM
For difficult EASM files, try converting them to formats like DWG, IGS, STEP, PDF, STP or similar formats to improve usability.
Be aware that converting a EASM file may reduce some features, but you can usually revert it to the original format.
Convert EASM to other file formats
Solve problems with EASM files
EASM files may present some challenges, but most can be easily addressed with minor software tweaks. See the troubleshooting tips below for guidance.
What are the ways to check if my EASM file is damaged?
EASM cad, cam and cae files that have become corrupted may display one or more of the following symptoms:
- The file does not respond or shows errors when opening it;
- The file exhibits poor performance during editing operations in SolidWorks;
- The file stops responding or freezes in SolidWorks or other programs;
- Unexplained EASM file size inflation;
- Actions performed on the file result in the appearance of error notifications;
Why does SolidWorks crash or shut down frequently?
Insufficient updates for SolidWorks products can cause SolidWorks to crash. Be sure to regularly install the latest software updates.
Restarting your computer will solve many common problems, which is why it’s the first thing you should do before changing any settings related to the software.
Is there any specific software or utility that can help repair a damaged EASM file?
Use a recovery program to open the damaged EASM file, and in the menu, click "Repair" to start the repair operation. Wait for the recovery process to finish, allowing automatic repair of damaged cad, cam and cae files.
How to edit a EASM file?
To make changes to EASM files, you need specialized software that allows both opening and editing the cad, cam and cae files. Online EASM editors offer fewer capabilities than applications optimized for EDrawings Assembly Format.
Best EASM Editor Software in 2026
With the mentioned criteria in mind, we have assembled a selection of EASM editors.
| EASM Editor Software | Developer | Platforms | Overall Rating |
|---|---|---|---|
| SolidWorks | SolidWorks | Windows | 4.3 out of 5 (43 reviews) |






