Excel Viewer

Open and view Excel files (.xlsx, .xls) directly in your browser. Free to use without installation.

Drag and drop an Excel file or click to upload

Supported formats: .xlsx, .xls, .csv (max 50MB)

Key Features

Multiple Formats

Supports Excel (.xlsx, .xls) and CSV files

Sheet Navigation

Easy tab navigation for multi-sheet files

CSV Export

Download current sheet as CSV file

Privacy First

All processing in browser, no server upload

Use Cases

Quick Preview

View file contents without Excel installed

Data Review

Check data structure of received files

CSV Conversion

Easily convert Excel files to CSV

Mobile Access

View Excel files on your smartphone

Notice

  • All file processing happens in your browser only.
  • Files are never uploaded or stored on any server.
  • Complex formulas and macros may not display.
  • Charts, images, and visual elements are not shown.

Frequently Asked Questions

What file formats are supported?

Three formats are supported: xlsx (Excel 2007 and later), xls (older Excel), and csv (comma-separated text). Files exported from Google Sheets or Numbers can also be opened if they are in xlsx or csv format. However, macro-enabled (xlsm) or binary (xlsb) formats are not supported.

Is there a file size limit?

Up to 50MB is supported. If the file is too large, it may not open due to insufficient browser memory. For large files, it is recommended to save only the needed sheets separately or split the data.

Can I edit the file?

This tool is viewer-only and does not provide file editing functionality. It is recommended to export the data as CSV and edit it in another tool, or edit it directly in Microsoft Excel or Google Sheets.

Is file data processed securely?

Files are processed only within the user's browser and are not transmitted or stored on any server. All data is completely deleted when the page is closed. Files containing personal or confidential data can be used with confidence.

Guide to Using the Excel File Preview Tool

A free online viewer that lets you open and preview Excel files directly in your browser without installing Excel. Check file contents quickly anytime, anywhere.

Key Use Cases for the Excel Viewer

This tool is useful for Mac users or environments where Excel is not installed who need to quickly view xlsx files. You can instantly open email attachments without installing any software. It is also convenient for checking work files on smartphones or tablets, or for understanding the structure of complex files with multiple sheets.

CSV Conversion and Data Use

Converting an Excel file to CSV improves compatibility with a wide range of programs. You can use it for database imports, data analysis tools like Python and R, and Google Sheets uploads. Since you can export CSV per sheet, it is also convenient for selectively extracting only the data you need.

This calculator is provided for informational purposes only.

Results are estimates and may differ from actual amounts.

© 2025 calculkorea. All rights reserved.

Link copied!