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XLSX to XLS Converter

Convert your xlsx files to xls (excel spreadsheet) online & free

Drag & Drop or Choose a file

Chose XLSX file
To
Drop file here. 150 MB maximum file size.

No sign-up required. Your files are deleted automatically after 24 hours.

Convert to XLS   

What did you think of your recent XLSX conversion? 4.9 (2376 Votes)

Convert Other XLSX File

How to Convert PDF to DOCX

  1. Click the "Choose XLSX File" button and select your XLSX.
  2. Click โ€œConvert to XLSโ€.
  3. Wait a few seconds while we convert your file.
  4. Download the resulting XLS file instantly.

What is XLSX?

An XLSX file is a spreadsheet created by Microsoft Excel or another spreadsheet program, such as OpenOffice Calc or Apple Numbers. Data are stored in worksheets, which contain cells arranged in a grid of rows and columns, and may also contain tables, mathematical functions, styles and formatting. XLSX files are commonly used to store financial data and backup simple or complex mathematical models.


Read everything about XLSX file type.

What is XLS?

An XLS file is a spreadsheet created by Microsoft Excel or another spreadsheet program, such as OpenOffice Calc or Apple Numbers. This contains one or more worksheets, which store and display the data as a table. They can also store mathematical functions, graphics, styles and formats.


Read everything about XLS file type.

More Free Online XLSX Tools

We have 100% free online XLSX tools that does not required any registrations and installations on your system, here are few popular free XLSX tools to View, Convert, Edit, Merge, Split, Compare and manage file metadata online from any device with a modern browser like Chrome, Opera and Firefox.

Frequently Asked Questions

โ“ How can I convert XLSX to XLS?

Chose or drag & drop your XLSX file, click Convert to XLS, and download the XLS file. No registration needed.

๐Ÿ” Are my files secure?

Yes, all uploads are encrypted. Your files are auto-deleted after 24 hours.

๐Ÿ“ Will my formatting be preserved?

Yes, our converter retains layout, fonts, and images as accurately as possible.

โฑ๏ธ How long does it take to convert XLSX to XLS?

Fileproinfo converter engine works fast. You can convert XLSX to XLS in a few seconds to couple of minutes for large size files with complex structure.

Convert from XLSX

FileProInfo support manay file formats that allow you to convert XLSX to 100s of file formats, without any limit, registration and downloading, 100% free and online XLSX converter.

100% Free xlsx file converter online tools. Other recommended free online xlsx to xls file converter

All converters in this list are manually verified & 100% free and working properly, however you must use these apps according to their respective terms & conditions.

# Tools License Developer
1 XLSX to XLS converter Free JeDok.com
1 XLSX to XLS converter Free Docpose.com
Browse all file extensions Browse all software programs Browse free online tools

This tool and page updated at: 12-Apr-2025

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