Download and install the latest version of Filestar.
Right click on one or more Smi file(s) on your desktop and select Convert with Filestar.
Type convert to rt in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.smi -c "convert to rt" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
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.smiContract.smi
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert SMI to RT
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 SMI files in my Downloads folder to RT”
Or run it yourself:
filestarcli -i file.smi -c "convert to rt"
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 SMI to RT?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.smi -c "convert to rt" on your computer, so your files stay on it.
SMI (Synchronized Accessible Media Interchange) is a file type associated with multimedia presentation files. It is used to store captions and subtitles for multimedia files as well as other data such as timing information, font information, and language information. It is commonly used for videos, DVDs, and other multimedia content.
RealText is RealNetworks' markup format for timed text in RealPlayer. Captions sit in a <window> element, each starting at a <time begin> tag.