Download and install the latest version of Filestar.
Right click on one or more Fssd file(s) on your desktop and select Convert with Filestar.
Type convert to cvu in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.fssd -c "convert to cvu" (how).
Documents - File Explorer─☐✕
This PC › Documents
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Desktop
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.fssdContract.fssd
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert FSSD to CVU
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 FSSD files in my Downloads folder to CVU”
Or run it yourself:
filestarcli -i file.fssd -c "convert to cvu"
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 FSSD to CVU?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.fssd -c "convert to cvu" on your computer, so your files stay on it.
CVU file is a CVSD Unfiltered Audio. Continuously Variable Slope Delta modulation (unfiltered) is an alternative handler for CVSD that is unfiltered but can be used with any bit-rate.