Download and install the latest version of Filestar.
Right click on one or more Atk file(s) on your desktop and select Convert with Filestar.
Type convert to bmp in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.atk -c "convert to bmp" (how).
Documents - File Explorer─☐✕
This PC › Documents
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Desktop
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Pictures
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.atkContract.atk
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert ATK to BMP
Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine. It works on Windows, macOS only.
Install Filestar and add it to your agents:
npm install -g filestar
filestarcli agent install
Then ask your agent:
“Convert the ATK files in my Downloads folder to BMP”
Or run it yourself:
filestarcli -i photo.atk -c "convert to bmp"
Runs on your computer, so your files stay on it. Works on Windows and macOS. 50 free conversions with the npm install, no account needed.
Can my AI agent convert ATK to BMP?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.atk -c "convert to bmp" on your computer, so your files stay on it.
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.
A BMP file is an uncompressed raster image comprised of a rectangular grid of pixels. It contains a file header (bitmap identifier, file size, width, height, color options, and bitmap data starting point) and bitmap pixels, each with a different color.
