Download and install the latest version of Filestar.
Right click on one or more Umx file(s) on your desktop and select Convert with Filestar.
Type convert to opml in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.umx -c "convert to opml" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
Music
.umxContract.umx
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
ConvertMergeCompressExtractMoveZip
Let your AI agent convert UMX to OPML
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 UMX files in my Downloads folder to OPML”
Or run it yourself:
filestarcli -i file.umx -c "convert to opml"
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 UMX to OPML?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.umx -c "convert to opml" on your computer, so your files stay on it.
UMX (Unreal Music Package) is a container format used by the Unreal Engine to store music tracks, typically encapsulating tracker-format audio data such as S3M, XM, IT, or MOD. It allows game music to be packaged and referenced alongside other Unreal engine assets. It is primarily used in games built on the Unreal Engine 1 and 2 for background music playback.
OPML (Outline Processor Markup Language) is an XML-based format used to exchange outline-structured information. It is most commonly used to share lists of web feed subscriptions (such as RSS or Atom feeds) between feed readers and aggregators.
