XLS (EXCEL) to XLSX (EXCEL) Converter

Convert your xls files to xlsx online & free

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Convert to XLS

xls

Microsoft Excel Worksheet Sheet (97-2003)

XLS format is used to refer to the documents of the program Microsoft Excel. This file is a spreadsheet. All document data distributed and stored in the cells. Each cell has a unique address, which is denoted by letters and Arabic numerals. The cell can contain fixed data, and data in the form of formulas, which bind more cells.
XLSX Converter

xlsx

Office Open XML Worksheet Sheet

XLSX is a file format created with Microsoft Excel, version from 2007 and younger. This file is a spreadsheet. All data distributed document and stored in the cells. Each cell has a unique address, which is denoted by the letters and Arabic numerals. XLSX file format is based on the Open XML. To reduce the size of the file is compressed ZIP.

How to convert XLS to XLSX

Step 1

Upload xls-file(s)

Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.

Step 2

Choose "to xlsx"

Choose xlsx or any other format you need as a result (more than 200 formats supported)

Step 3

Download your xlsx

Let the file convert and you can download your xlsx file right afterwards

XLS to XLSX Quality Rating

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