Download and install the latest version of Filestar.
Right click on one or more Ost file(s) on your desktop and select Convert with Filestar.
Type convert to rtf in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.ost -c "convert to rtf" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
Music
.ostContract.ost
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
ConvertMergeCompressExtractMoveZip
Let your AI agent convert OST to RTF
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 OST files in my Downloads folder to RTF”
Or run it yourself:
filestarcli -i file.ost -c "convert to rtf"
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 OST to RTF?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.ost -c "convert to rtf" on your computer, so your files stay on it.
n OST file is a data file created by Microsoft Outlook (2005 or later), an email client and personal information manager. It is used to store a copy of mailbox information from an Office 365, Exchange, or Outlook.com account. OST files may contain email messages, contacts, tasks, calendar data, and other account information.
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.
