windows app
Convert XLSX to ODS
Convert XLSX spreadsheets to ODS spreadsheets locally on Windows. No upload, no signup, no watermark.

features
what the app does
- Paste from clipboard — Ctrl+V joins the queue (e.g. a Win+Shift+S screenshot lands without saving to disk).
- Batch convert whole folders, sub-folder structure preserved.
- Auto-convert watcher — point the app at a watched folder; converted files appear in your output folder.
- Right-click .xlsx files in File Explorer — "Convert to ODS" opens the app pre-loaded with your selection.
- Ten UI languages, light + dark themes following the system.
- Offline by design — no telemetry, no account, no user-data exfiltration.
details
XLSX to ODS on your pc
XLSX to ODS Converter turns your spreadsheets into ODS spreadsheets on your Windows PC, with no upload and no signup.
how it works
Convert xlsx to ods using SheetJS, with the full conversion handled locally on your Windows device. Your spreadsheets stay on your PC while the app creates an ODS spreadsheet.
paste from clipboard
Press Ctrl+V to drop a spreadsheet from the clipboard straight into the queue. Copy a spreadsheet in Excel, switch to the app, and paste it in without saving first.
batch conversion
Convert a whole folder of spreadsheets in one run. Subfolders are kept in the output, so a folder of 200 spreadsheets in 10 subfolders comes out in the same shape.
auto-convert watcher
Open Auto-convert, choose a watched folder and an output folder, then leave the app in the Windows system tray. Drop a fresh export there and the converted copy appears in the output folder.
right-click in explorer
Use Convert to ODS from the File Explorer right-click menu for .xlsx files. The app opens with your selection already loaded, so you can start quickly.
languages & themes
The UI ships in ten languages. Light and dark themes follow your Windows system theme automatically.
offline by design
No telemetry, no account, and no user-data exfiltration. The spreadsheets never leave the device.
free & pro
The free version lets you convert XLSX to ODS with no file size or file count limits. Upgrade to Pro with a one-time lifetime purchase to remove ads and unlock batch conversion. No subscriptions or recurring payments.
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