An XLSX reader opens Excel workbooks without Microsoft Excel. Use it when a file arrives by email and you need to read it or make a quick fix, on a Chromebook, a laptop, or a computer without Office. On a phone you can read, search and sort it.
Which page do you need?
This page is the full viewer. If you know what you want to do with the file, these pages start from that job:
- Open an XLSX file without Excel: steps for Windows, Mac, Chromebook, iPhone and Android.
- Open old .xls, .xlsb and .ods files: formats and date quirks of older files.
- Open a very large file: speed measured on 100,000 and 300,000 rows.
- Edit a file and save a copy: what is kept when you save.
- Use it offline, and check that nothing is uploaded.
- Convert a sheet to CSV: leading zeros, dates and encodings.
How it works
- Drop your fileDrag it onto the page, or click the drop area and choose it. Nothing is uploaded.
- Look aroundPick a sheet, search, sort, filter, zoom, or go full screen. Click any cell to see its full value or formula.
- Take it with youExport the view as CSV, XLSX, HTML or JSON, print it, or edit it and save a copy.
What you can do
Every common format
Excel (.xlsx .xls .xlsm .xlsb), OpenDocument (.ods), CSV, TSV and dBase files. Open several at once, each in its own tab.
Search, sort and filter
Search every column, filter each column by its values, sort with one click, highlight duplicate rows and freeze the first columns.
Colors, charts and pictures
Cell colors, conditional formatting, pictures and bar or line charts from the file are shown, so a report still looks like a report.
Large sheets stay smooth
Files are read in the background and only visible rows are drawn. See the measured speeds.
Change cells, keep a copy
Change cells, add rows, and save a new .xlsx. The original is never touched. How editing works.
Take it with you
Export what you see as CSV, XLSX, HTML or JSON, or print it as a PDF. Exports follow your current filter and sort, and hidden rows are left out. Hidden columns are left out of CSV, HTML and JSON.
Password-protected files
Excel 2010 and newer files unlock in your browser. The password never leaves your device and is never stored.
Still there when you return
Your tabs, sheet, filters, zoom and any edits are remembered in this browser. Close a tab, or use Clear data, to erase them.
Is it really private?
Your spreadsheet is opened by code running in your own browser. It is not uploaded, copied to a server or shared. The reader and the spreadsheet library are served from this site, not a third party.
To keep your tabs between visits, they are saved in your browser’s own storage on this device. Clear data, beside the Save button, or Clear saved data in the ⋯ menu removes all of it, including your edits and History. The original files on your device are never touched. See how to verify this yourself.
More spreadsheet tools
Split an Excel or CSV File
Split an Excel or CSV file into smaller files by rows, file size, column value, date or number range.
Remove Duplicate Rows and Clean a CSV
Trim whitespace and remove empty and duplicate rows from a CSV, or find near-identical rows that exact matching misses.
Turn a CSV into a Chart
Turn a CSV, TSV or simple XML file into a bar, line, pie, doughnut, scatter or radar chart and download it as PNG or SVG.
Anonymize a CSV File
Find likely personal-data columns in a CSV and mask, hash, replace with fake data, shuffle or drop them.
CSV to SQL Converter
Turn CSV rows into SQL INSERT statements for MySQL, PostgreSQL, SQLite or SQL Server.
SQL to CSV Converter
Turn SQL INSERT statements from a MySQL, PostgreSQL, SQLite or SQL Server dump into a CSV file.
Frequently asked questions
Is it really private?
Yes. Your spreadsheet is read on your own device and is never sent to a server. To keep your tabs between visits, the viewer saves them in your browser’s own storage. Your edits and their History are kept there too. Clear data, beside the Save button, or Clear saved data in the ⋯ menu, deletes everything it saved.
Does it work offline?
Yes. After your first visit the viewer opens files with no internet connection. The offline guide shows how to test it with airplane mode.
Which file types can it open?
.xlsx, .xls, .xlsm, .xlsb, .ods, .csv, .tsv and .dbf, plus a few older text-based formats (.dif, .slk, .prn, .txt). For the old binary formats, see the XLS viewer page.
Does it show colors, charts and pictures?
Yes, within limits. It shows cell fill colors and column widths, conditional formatting such as color scales, data bars and icon sets, pictures, and bar and line charts. Pictures and charts appear in a strip above the grid and are read-only. Fonts and borders are not drawn on screen, although fonts and fills from your file are kept when you save an edited copy. Other chart types such as pie or scatter are listed but not drawn.
Can it open a password-protected file?
Yes, for files protected in Excel 2010 or newer. You type the password in your browser, it is used there to unlock the file, and it is never sent anywhere or saved. Older Excel 2007 encryption and encrypted .xls files are not supported.
Can I edit a spreadsheet and save it?
Yes. Click Edit this sheet, change cells, and use Save .xlsx to download a copy. The original file is never changed. Formulas recalculate. The editing guide lists what is kept in the saved copy and what is not.
How big a file can it open?
Sheets of up to 300,000 rows. A big .xlsx shows its first rows within a few seconds while the rest loads. See the timings for 100,000 and 300,000 rows, and what to do beyond that.
Does it work on a phone?
Yes. Sheets with up to 10 columns appear as easy-to-scroll cards. Wider sheets stay as a table with the first column frozen, so you always know which row you are reading. Sheets shown as cards cannot be edited: the Edit button stays visible but is switched off and says it needs a wider screen. Rotate your device or use a larger screen to edit.
When people use it
- A client sends a price list as an .xlsx file and you only have a phone or a Chromebook.
- You need to fix one wrong figure in a workbook and do not have Office installed.
- You are on a work computer where uploading a file to a cloud service is not allowed.