Download and install the latest version of Filestar.
Right click on one or more Rtf file(s) on your desktop and select Convert with Filestar.
Type convert to xltx in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.rtf -c "convert to xltx" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
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.rtfContract.rtf
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
ConvertMergeCompressExtractMoveZip
Let your AI agent convert RTF to XLTX
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.
“Convert the RTF files in my Downloads folder to XLTX”
Or run it yourself:
filestarcli -i file.rtf -c "convert to xltx"
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 RTF to XLTX?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.rtf -c "convert to xltx" on your computer, so your files stay on it.
An RTF file is a common text file format that supports "rich text." It includes several types of text formatting, such as bold type, italics, different fonts and font sizes, and custom tab settings. RTF files also support objects and images, such as .JPG and .PNG files, saved within the text file.
An XLTX file is a template created by Microsoft Excel, a program used for creating spreadsheets.