Download and install the latest version of Filestar.
Right click on one or more Vstx file(s) on your desktop and select Convert with Filestar.
Type convert to vsdx in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i photo.vstx -c "convert to vsdx" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
Music
.vstxContract.vstx
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
ConvertMergeCompressExtractMoveZip
Let your AI agent convert VSTX to VSDX
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 VSTX files in my Downloads folder to VSDX”
Or run it yourself:
filestarcli -i photo.vstx -c "convert to vsdx"
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 VSTX to VSDX?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i photo.vstx -c "convert to vsdx" on your computer, so your files stay on it.
Files with .vstx extensions are drawing template files created with Microsoft Visio 2013 and above. These VSTX files provide starting point for creating Visio drawings, saved as .VSDX files, with default layout and settings.
Files with .vsdx extension represent Microsoft Visio file format introduced from Microsoft Office 2013 onwards.