View, edit, and convert .xlsx, .xls, .csv, .ods and .tsv right in your browser — no install, no Google account, no upload.
Drop your spreadsheet here
or click to browse · nothing leaves your browser
Everything you can do
Spreadsheets, no account
View, search, edit and convert .xlsx, .csv, .ods and more — parsed on your device, never uploaded to a cloud.
GhostSheet opens and converts spreadsheets in your browser — no Excel, no Google account, no upload. View and edit .xlsx, .xls, .csv, .ods and .tsv files as a clean sortable table, search across every cell, fix values inline, and export to CSV, Excel (.xlsx) or JSON. The file is parsed on your device, so a financial model or a customer list is never sent to a server just to be read.
Open your spreadsheet
Drop an .xlsx, .xls, .csv, .ods or .tsv file, or paste rows straight from another sheet.
View, search, and edit
Browse it as a sortable table with sheet tabs, filter rows by keyword, and click any cell to fix a value.
Convert and export
Download as CSV, Excel (.xlsx) or JSON in one click.
| Feature | GhostX | Google Sheets import / Zamzar |
|---|---|---|
| File uploaded to a server | Never — on-device | Uploaded to their cloud |
| Account required | No | Google / signup |
| Conversion cap | Unlimited | Free tier is limited |
| Data privacy | Stays on your device | Held on their servers |
Can I open an .xlsx file without Excel?
Yes. GhostSheet renders Excel files as a clean table in your browser — no Microsoft Office and no Google account needed.
Does the spreadsheet get uploaded?
No. The file is parsed entirely on your device, so sensitive data (finances, contacts) is never sent to a server.
How do I convert XLSX to CSV or JSON?
Open the file and use the export menu to download it as CSV, Excel or JSON — the conversion runs locally.
Can I edit cells before exporting?
Yes. Click any cell to change its value, then export the corrected file.
What formats can I open?
.xlsx, .xls, .csv, .ods and .tsv. You can also paste tabular data directly.
Everything runs in your browser. Your files are never uploaded — for the single-file tools there's no upload endpoint to send them to.
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