What is an SSI file?
The .SSI file extension is used by many different software programs. The most common use is a CAD project image file for Nemetschek Allplan. These files often use the standard JFIF or JPEG image format. Another common use is an Adobe Dreamweaver Server Side Include File. Developers use these files in Adobe Dreamweaver from Adobe Systems to insert standard web code into multiple web pages.
Because an .SSI file can contain different types of data, it might also be a dental CAD scan data file for CEREC or Exocad. Some .SSI files hold encrypted user profile data for I-DENTITY chat software, study files for Lighthouse Studio, or tax data archives for DATEV.
How to open SSI files?
Because the .SSI file extension has multiple possible meanings, you must identify the actual format of your file before you open it. We recommend using viewer.online/ssi to analyze your .SSI files. The platform will identify their exact format and creator software, show which programs can open the file, and usually preview the content.
If you know the exact origin of your file, you can open it with the correct native software. You can open an Adobe Dreamweaver Server Side Include File with a standard text editor. You can extract tax data files with a standard archive tool because they use standard .ZIP compression.
Best practices and troubleshooting
If you cannot open your .SSI file, look at the file size and context. A very small file is likely a web script or text file. A large file is often a CAD image or a dental scan. If the file contains tax data or chat profiles, it might use GZIP or ZIP compression. You can try to rename the extension to .ZIP and extract it with tools like 7-Zip.
You can often convert your files to more common formats. We recommend file conversion to sensible target formats on convert.guru. For example, you can convert an image-based .SSI file to .JPG or .PNG, or text-based include files to .HTML.
Software and tools
Many tools create and use .SSI files. Important software includes Nemetschek Allplan for building design, Adobe Dreamweaver for web development, and Exocad for analyzing dental scans. Market researchers use Lighthouse Studio, and accountants use DATEV.
Summary
An .SSI file can hold CAD images, web scripts, dental scans, or compressed data archives. viewer.online/ssi directly opens and previews .SSI files in the browser, eliminating the need to install software or troubleshoot compatibility issues.