# XLSX Viewer

Free online XLSX viewer for Excel spreadsheets. Open .xlsx, .xlsm, .xltx, and .xltm files directly in your browser without uploading them.

> Canonical page: https://elysiatools.com/en/viewers/xlsx

- **Category:** Spreadsheets

- **Supported formats:** .xlsx, .xlsm, .xltx, .xltm

## Overview

This XLSX viewer renders spreadsheets locally in your browser. Open a sample workbook or your own file to inspect worksheets, values, and formatting without Microsoft Excel.

## When to use

- You need to inspect spreadsheet data on a device without Excel or Google Sheets.
- You want a private preview before opening a workbook in another app.
- You need to scan worksheets, tables, or exported reports quickly.

## How it works

- Select a sample or load your own .xlsx, .xlsm, .xltx, or .xltm file.
- The workbook is parsed and displayed in the browser without server-side conversion.
- You can move between worksheets and replace the file at any time.

## Use cases

- Reviewing budgets, reports, and tabular exports.
- Checking template-based Excel workbooks before reuse.
- Inspecting macro-enabled spreadsheets in a simplified preview flow.

## Samples

- **Basic XLSX Sheet**: Small spreadsheet sample with foundational worksheet structure
- **Data XLSX Sheet**: Spreadsheet focused on tabular data for parser and import testing
- **Financial XLSX Sheet**: Spreadsheet sample intended for financial-style worksheet validation

## Frequently asked questions

### Is this XLSX viewer free?

Yes. It is free to use and runs directly in the browser.

### Are my spreadsheets uploaded?

No. Files from your device are rendered locally. Only public sample files are loaded from the server.

### Which Excel formats are supported?

The viewer targets .xlsx, .xlsm, .xltx, and .xltm files. Legacy .xls files are outside the current viewer scope.

## Related content

- [XLS Viewer](https://elysiatools.com/en/viewers/xls): Open and preview legacy Excel spreadsheets (.xls) directly in your browser — no upload, no server processing.
- [ODS Viewer](https://elysiatools.com/en/viewers/ods): Open and preview OpenDocument spreadsheets (.ods, .fods) directly in your browser — no upload, no server processing.
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- [CSV Viewer](https://elysiatools.com/en/viewers/csv): Open and preview CSV files (.csv) directly in your browser — no upload, no server processing.
- [DOCX Viewer](https://elysiatools.com/en/viewers/docx): Open and preview Word documents (.docx, .docm, .dotx, .dotm) directly in your browser — no upload, no server processing.
- [DOC Viewer](https://elysiatools.com/en/viewers/doc): Open and preview legacy Word documents (.doc, .dot) directly in your browser — no upload, no server processing.