Download and install the latest version of Filestar.
Right click on one or more Ico file(s) on your desktop and select Convert with Filestar.
Type convert to atk in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.ico -c "convert to atk" (how).
Pictures - File Explorer─☐✕
This PC › Pictures
Home
Desktop
Downloads
Documents
Pictures
Music
.icoMarket.ico
.heicBeach.heic
.pdfReceipt.pdf
.docxNotes.docx
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert ICO to ATK
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 ICO files in my Downloads folder to ATK”
Or run it yourself:
filestarcli -i photo.ico -c "convert to atk"
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 ICO to ATK?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.ico -c "convert to atk" on your computer, so your files stay on it.
An ICO file is an image format used to store icons for Windows programs, files, and folders. It contains two bitmaps: 1) the AND bitmap - the image mask (which determines what part of the icon is transparent) and 2) the XOR bitmap - contains the icon which is mapped onto the image mask. ICO files can be modified to create custom icons.
The ATK (Andrew Toolkit raster object) file type is a raster image format used by the Andrew Toolkit, a graphical user interface development system developed by Carnegie Mellon University. ATK files store both vector and bitmap graphics and are used to create graphical user interfaces for applications.
