File viewer
XLSX File Viewer
Open and preview Excel .xlsx spreadsheets in your browser without uploading the file to a server.
Runs Locally
This tool runs in your browser. Files never leave your device.
What this tool does
XLSX File Viewer opens an Excel spreadsheet and shows the sheets and cells in your browser, no copy of Excel required. Flip between tabs and read the data straight from the .xlsx, which is handy on a phone, a locked-down work machine, or anywhere you just need a quick look.
How it works
Open or drop an .xlsx and the viewer reads the workbook in your browser and lays out the sheets and cells. Switch between sheets and scan the data. Nothing is uploaded.
When to use XLSX File Viewer
Opening a spreadsheet without Excel installed
Checking a workbook on a phone or tablet
Previewing an .xlsx attachment before saving it
Reading shared data on a locked-down machine