Download and install the latest version of Filestar.
Right click on one or more Fxo file(s) on your desktop and select Convert with Filestar.
Type convert to heif in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.fxo -c "convert to heif" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
Music
.fxoContract.fxo
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert FXO to HEIF
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 FXO files in my Downloads folder to HEIF”
Or run it yourself:
filestarcli -i file.fxo -c "convert to heif"
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 FXO to HEIF?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.fxo -c "convert to heif" on your computer, so your files stay on it.
The FXO file type is associated with WinFAX, a software application designed for managing fax communications on personal computers. FXO files specifically represent fax documents that have been saved or archived within the WinFAX program. These files are used to store received fax messages in a digital format, allowing users to view, organize, or reprint faxes without needing the original paper version. The FXO format is part of the broader functionality of WinFAX, which includes sending, receiving, and managing fax transmissions directly from a computer.
Based on HEVC (High-Efficiency Video Coding), the HEIF format is an image file container with one or multiple images and is the default image format for Apple Live Photos. It replaced the JPEG format as it's smaller in size and has lossless compression ensuring high-quality photos.
