Convert XLS (Excel) to XLTX
Convert XLS (Excel) spreadsheet documents to XLTX format, edit and optimize documents online and free.
Drop Files Anywhere to Upload
XLS is a file format used by Microsoft Excel for storing spreadsheet data. It is based on the Binary Interchange File Format (BIFF) and stores information in binary format. XLS was the default file format for Excel until the release of Excel 2007 when it was replaced by the newer XLSX format, which is XML-based and has a more open structure.
An XLTX file is an Excel Open XML spreadsheet template used to build multiple XLSX files with the same layouts and formatting. It can be opened, edited, and saved in Microsoft Excel. XLTX uses XML as data structure and ZIP as data compression to reduce the file size.
Select any XLS (Excel) file from your device to start uploading it.
Choose any XLS (Excel) to XLTX converter tools for a customized conversion, and click Convert.
Let the conversion process finish, then download your XLTX spreadsheet document.
To change XLS format to XLTX, upload your XLS file to proceed to the preview page. Use any available tools if you want to edit and manipulate your XLS file. Click on the convert button and wait for the convert to complete. Download the converted XLTX file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to XLS (Excel) file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to XLS (Excel) file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to XLS (Excel) file location or include path to your input file.