Free tools

Excel viewer — open .xlsx without Office

View any Excel workbook in your browser: switch between sheets, sort and search, no Office license needed. The file never leaves your device.

Click to upload or drag and drop

Drop your CSV, Excel, or JSON file

Max 10MB

Runs 100% in your browser — this page makes no network request with your data.

  1. 1

    Drop an .xlsx or .xls file — every sheet with data becomes a tab.

  2. 2

    Sort, search, and read the workbook like a clean table.

  3. 3

    Send any sheet to the workspace to analyze it with AI.

Worked example: reading a multi-sheet supplier workbook without Office

A procurement coordinator on a new laptop with no Office license is emailed a supplier quote as an .xlsx workbook with separate sheets for pricing, lead times, and terms. Rather than buy a license or hunt for a converter, they drop the file onto the Excel viewer.

Every sheet that contains data becomes its own tab. They open the pricing sheet, sort by unit cost to see the most expensive line items, and search the terms sheet for a specific clause. The workbook renders as clean, readable tables, and because parsing runs in the browser, the supplier's confidential pricing never leaves the machine.

When they need to actually compare this quote against last quarter's, reading is not enough, so they send the pricing sheet to the workspace, where the numbers are recomputed with visible Python and can be charted and packaged into a shareable report for the sourcing team.

Frequently Asked Questions

Everything you need to know about using AnalyzeData.

Yes — this viewer parses .xlsx and .xls in your browser and renders each sheet as a table. Reading a workbook requires no license and no installation.

Yes — every sheet containing data appears as a tab; switch freely and analyze any one of them.

Cell values stored in the file (including each formula's last computed value) are shown; formulas are not re-executed. For computation, send the sheet to the analysis workspace.

Yes; it opens both the modern .xlsx format and the older .xls format, rendering each sheet with data as its own tab. You can sort and search any sheet like a normal table, with no Office license or install required. Reading happens in your browser, so even a legacy workbook someone emailed you stays on your own device.

The viewer displays the value stored in the file, including each formula's last computed result, but it does not re-execute formulas. So if a workbook was saved with stale values, you see those stale values, not fresh ones. When you need numbers actually recomputed, send the sheet to the workspace, where the analysis runs as real Python on the data.

When a table isn't enough

The workspace runs verified AI analysis on the same file and turns the results into a report you can send.

Analyze this data instead