XLSX to XLS Converter

Convert XLSX to XLS online quickly and easily. Just upload your file, convert it, and download the XLS in seconds.

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What is XLSX ?

The XLSX file format is a spreadsheet file format created by Microsoft Excel, which is part of the Microsoft Office suite. It is based on the Open XML format and is widely used for storing and managing data in tabular form, allowing users to perform calculations, create charts, and analyze information efficiently.

XLSX format  ▶

What is XLS ?

XLS is a file format used by Microsoft Excel to store spreadsheet data. It allows users to organize, analyze, and visualize data in tabular form, making it a versatile tool for various data management tasks.

XLS format  ▶

How to Convert XLSX to XLS in Just a Few Steps

  1. Upload your XLSX file
    Drag and drop your XLSX file, click 'Select Files' to upload from your device, or import directly from Dropbox, Google Drive, OneDrive, or paste a URL.
  2. Choose XLS as output format
    The converter is preset to XLS, but you can select any other output format before converting.
  3. Adjust settings (optional)
    If you like, tweak output options such as resolution, quality, or compression before converting.
  4. Convert the file
    Click the 'Convert' button. The conversion takes only a few seconds.
  5. Download your converted file
    Download the converted file to your device, or save it directly to Google Drive, Dropbox, or OneDrive.

Why Convert XLSX to XLS file?

XLSX is the modern Excel spreadsheet format, while XLS is the older version used by Excel up to 2003. Converting XLSX to XLS is useful when you need to open or share a spreadsheet with someone running very old software, or with a system that only accepts the legacy format. It steps your spreadsheet back to the version those older tools can handle.

The conversion keeps your data and most formatting while switching to the older container. In most cases XLSX is the better choice, since it is more capable and widely supported, but compatibility with legacy programs is a genuine need in some offices and workflows. Bear in mind that very large or feature-rich spreadsheets may be simplified, since the old format has lower limits, but for basic compatibility, XLS does the job.

Start converting XLSX to XLS now — it’s fast, safe, and completely online!

Frequently Asked Questions