Open XLSX and CSV online
See the content of XLSX, XLS, CSV, TSV and ODS spreadsheets without needing Excel. The file is opened in your browser and never goes through our servers.
Drag a file here
or click to choose on your computer
We accept XLSX, XLS, CSV, OFX, XML, JSON, PDF, PNG and JPG
100% local: the file never leaves your browser.
What you get
- Opens XLSX, XLSM, XLS, CSV, TSV and ODS
- Switches between sheets and scrolls large spreadsheets
- Copies individual cells
- Detects the real file type from its content, not just the extension
- 100% in-browser processing, without sending the file
Privacy in your browser
The file is processed in your browser and never goes through our servers. You can use the tool with client statements and documents without exposing their content to third parties.
Frequently asked questions
How do I open an XLSX file without Excel?
Choose the file in the box above or drag it onto it. The spreadsheet is read in the browser and shown with its sheets and cells, with no software to install.
How do I open a CSV online?
Use the same box: the CSV opens as a table. This avoids the problem of merged columns when Excel guesses the wrong separator.
Is my file sent to any server?
No. The spreadsheet is read in your browser and never goes through our servers.
Does this viewer edit spreadsheets?
No. It's for reading and copying the content. The original file is not modified.