Download and install the latest version of Filestar.
Right click on one or more Efx file(s) on your desktop and select Convert with Filestar.
Type convert to png in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.efx -c "convert to png" (how).
Documents - File Explorer─☐✕
This PC › Documents
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Desktop
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Pictures
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.efxContract.efx
.xlsxBudget.xlsx
.pdfReport.pdf
.docxNotes.docx
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert EFX to PNG
Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine. It works on Windows, macOS only.
“Convert the EFX files in my Downloads folder to PNG”
Or run it yourself:
filestarcli -i file.efx -c "convert to png"
Runs on your computer, so your files stay on it. Works on Windows and macOS. 50 free conversions with the npm install, no account needed.
Can my AI agent convert EFX to PNG?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.efx -c "convert to png" on your computer, so your files stay on it.
EFX files are associated with Everex Everfax, a type of fax document created by the Everex fax software. This file format was used for storing and sending fax documents electronically, allowing users to manage fax communications directly from their computers. The EFX format contains all the necessary information to accurately reproduce the faxed document, including text and images. Everex Systems was a prominent computer manufacturer and software company during the late 1980s and 1990s, and its Everfax product was among the early solutions integrating fax technology with personal computing.
A PNG file is an image file stored in the Portable Network Graphic (PNG) format. It contains a bitmap of indexed colors and uses lossless compression, similar to a .GIF file but without copyright limitations. PNG files are commonly used to store graphics for web images.