Open an Excel file online
Open an .xlsx, .xlsm, or .csv file in your browser and read it — every sheet, searchable, with no Excel, no account, and no upload.
Drop a spreadsheet here to read it
.xlsx, .xlsm, .csv, .tsv, or .txt
Free · no sign-up · processed on your device
How it works
01
Drop the file in
An .xlsx, .xlsm, .csv, .tsv, or .txt file opens straight away. There is no account, no upload, and no waiting for a server.
02
Move around the workbook
Every sheet gets a tab with its row count. Column letters and row numbers stay pinned while you scroll, so you always know which cell you are looking at.
03
Search all of it
One search box covers every sheet at once, jumping between matches and naming the cell — useful when someone asks about a value and not where it lives.
Most of the time you do not need Excel — you need to see what is in a file someone sent you. That happens on a phone, on a work laptop where you cannot install anything, or on a machine that has simply never had Office on it. The usual answer is to upload the workbook to a viewer site, which means handing a stranger's server a file that may hold salaries, customers, or unreleased numbers. This reader parses the workbook inside your own browser tab instead, so the file goes nowhere at all.
What the reader shows, and what it does not
This is a reader for the data in a workbook, not a re-implementation of Excel. Knowing the boundary in advance saves you opening a file and wondering what went missing.
It shows
- Cell values from every sheet, including the results of formulas as the sheet last calculated them.
- Dates in ISO form, so a file written in another country reads the same way for you.
- Sheet tabs with row counts, so you can tell at a glance where the real data is.
- Search across the whole workbook, with the address of every match.
It does not show
- Cell formatting: colours, fonts, borders, and merged cells are not drawn.
- Charts, images, and shapes, which live outside the cell grid.
- The formula text itself — you see the value it produced, not =SUM(B2:B9).
- Macros, which are never executed, deliberately.
Once you have read it
- Export a range as a PNG to paste the numbers into a slide, a ticket, or a chat message.
- Convert the workbook to CSV when another system needs to import it.
- Unlock a read-only workbook if Excel refuses to let you edit it.
- Build a workbook from text when the data arrived as a .txt file instead.
Common questions
- How do I open an XLSX file without Excel?
- Drop it into the reader above. The workbook is parsed in your browser and displayed as a normal grid with sheet tabs, so you can read it on a machine with no Microsoft Office installed and no account to sign into.
- How do I open a CSV file without Excel?
- The same way: drop the .csv or .tsv onto the reader. Its separator is detected automatically, so a semicolon file from a European system opens as a table rather than one crammed column, and unlike a spreadsheet the reader changes nothing about the file it opened.
- Is my file uploaded to a server?
- No, and this is the main difference from most online viewers. The file is read by JavaScript running in your tab. It is never transmitted, never stored, and never seen by anyone else — which matters when the file is a salary sheet or a client list.
- Can I edit the file here?
- No. This is a reader, on purpose: nothing you do can change the file you opened. If you want to select a range and turn it into an image, use the Excel to PNG converter, and if you need a CSV, use the XLSX to CSV converter.
- Why can I not see my colours, charts, and merged cells?
- The reader shows the data rather than a facsimile of the Excel window. Formatting and charts are stored separately from cell values, and rendering them faithfully would make the tool slower without helping you find a number.
- Do I see formulas or their results?
- Their results. Excel saves the last calculated value alongside every formula, and that is what is displayed, matching what the file showed when it was last saved.
- How big a file can it open?
- The reader loads up to 20,000 rows and 256 columns per sheet, and displays them in pages of a few hundred rows so scrolling stays smooth. Larger sheets open with a note telling you what was loaded.
- Can it open .xls files from older Excel?
- No. The old .xls format is a different binary container. Anything that can open it — Excel, LibreOffice, Google Sheets — can save it as .xlsx, which this reader handles.
- What if the file asks for a password?
- A workbook with a password to open is encrypted and cannot be read until it is decrypted. The read-only Excel converter will do that if you have the password, and the unlocked copy opens here normally.