XLSX viewer
To open an XLSX file, drop it in the box below. It opens straight away, even with no extension or the wrong one. Your browser opens it on your device: nothing is uploaded.
What you see
| XLSX in the viewer | |
|---|---|
| Sheets | A tab for each, hidden ones too |
| Tables | Search, include and exclude filters, sort, value counts |
| Values | Dates as dates, leading zeros kept, formula results as saved |
| Old .xls files | Recognised, not shown yet |
| Extensions | .xlsx |
| Upload | None: opened on your device |
What is an XLSX file?
XLSX is the Excel workbook format since Excel 2007: a ZIP of XML files with every sheet’s cells.
Each sheet as a table in the Large CSV viewer: search every column, filter, sort and count values, and export rows as CSV. Dates come out as dates, leading zeros are kept, formulas show their saved results.
How to open an XLSX file
- Add your XLSX. Drop the file in the box, choose it or paste it.
- Look at it. Each sheet as a table in the Large CSV viewer: search every column, filter, sort and count values, and export rows as CSV. Dates come out as dates, leading zeros are kept, formulas show their saved results.
- Take it further. Open in hands it, in a new tab, to File converter or Batch.
Questions
Drop the .xlsx here. Each sheet opens as a table you can search, filter and sort.
Sheets of hundreds of thousands of rows open; the table is the Large CSV viewer, built for millions.
No. The viewer runs in your browser and opens the file on your device. Nothing is sent anywhere.