Download and install the latest version of Filestar.
Right click on one or more Sfw file(s) on your desktop and select Convert with Filestar.
Type convert to ras in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.sfw -c "convert to ras" (how).
Documents - File Explorer─☐✕
This PC › Documents
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Desktop
Downloads
Documents
Pictures
Music
.sfwContract.sfw
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert SFW to RAS
Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.
Install Filestar and add it to your agents:
npm install -g filestar
filestarcli agent install
Then ask your agent:
“Convert the SFW files in my Downloads folder to RAS”
Or run it yourself:
filestarcli -i photo.sfw -c "convert to ras"
Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.
Can my AI agent convert SFW to RAS?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.sfw -c "convert to ras" on your computer, so your files stay on it.
The SFW file format is associated with Seattle FilmWorks, a photography and film processing company. It was primarily used for images that were developed and digitized by Seattle FilmWorks. The format was proprietary, meaning it required specific software provided by Seattle FilmWorks or compatible third-party applications to view or convert the images. SFW files were popular in the late 1990s and early 2000s, especially among consumers who used Seattle FilmWorks' mail-order film developing service.
Originally used on the Sun Microsystems computers, RAS is a raster image format that displays bitmap images. It is popularly used for specific types of research projects and it can be developed in Unix OS as well. It supports 1 and 32-bits per pixel and used RLE compression codec.
