Convertxlsxxls
We've already converted 813,522,715 files with a total size of 6,574 TB.

Xlsx to XLS

Online Convert XLSX to XLS Use OnlineConvert online. Free fast! No registration is required.

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How to convert XLSX to XLS?

Online XLSX to XLS, you can put the XLSX to XLS format on your computer, tablet or mobile phone without downloading any software!

Step 1

Upload XLSX file

Select files from your computer, Google Drive, Dropbox, URL or by dragging them on the page.
Step 2

Select 'XLS'

Select output XLS or any other format as the conversion result (click the Convert button)
Step 3

Download your XLSX file

After the conversion you can download your XLS file and upload it to Google Drive, Dropbox.

xlsx : Microsoft Excel XML

XLSX is a proprietary spreadsheet file of Microsoft Excel that contains data. It contains data in rows or columns as well as charts. XLSX supports several mathematical functions also. It uses Open XML standard for containing data. It supports MS Office 2007 and above versions.

xls : Microsoft Excel 97/2000/XP

XLS is Microsoft Excel spreadsheet file that stores data and manipulates several mathematical operations. It uses a visual basic operation to implement several numeric functions. This spreadsheet file is supported by most of the open source or proprietary spreadsheet software.
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