Download and install the latest version of Filestar.
Right click on one or more Mub file(s) on your desktop and select Convert with Filestar.
Type convert to tar in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.mub -c "convert to tar" (how).
Documents - File Explorer─☐✕
This PC › Documents
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Desktop
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.mubContract.mub
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert MUB to TAR
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 MUB files in my Downloads folder to TAR”
Or run it yourself:
filestarcli -i file.mub -c "convert to tar"
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 MUB to TAR?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.mub -c "convert to tar" on your computer, so your files stay on it.
The .mub file type is associated with ExtractNow, an application used to extract multiple archives with ease. It contains a list of archives as well as information about their extraction destinations.
Tar archive created by tar, a Unix-based utility used to package files together; contains multiple files stored in an uncompressed format; commonly compressed into a .GZ file using GNU Zip compression.