XLS to XLSX Convert Online Free XLS to XLSX converter

How to convert XLS to XLSX?

You can convert XLS files to XLSX format in several ways. The most proven option is to download dedicated software that allows you to convert between the XLS and XLSX formats. At the bottom you will find a list of software programs that support XLS and XLSX files and can also save them in new file formats.

XLS File Type

An Excel spreadsheet is a type of spreadsheet created in the Microsoft Excel program. Although they are often called "Excel Spreadsheets," they may be saved in any one of the XLS file formats. XLS files are organized into sheets. These sheets are organized into tabs with each tab being assigned a name. XLS files can be opened by most office applications, but some applications may not display all the information that is contained in an XLS file. A .XLS file extension typically means that the file is an Excel spreadsheet saved in the XLS format.

XLSX File Type

.XLSX is a file extension of Microsoft Excel Open XML Spreadsheet. XLSX stands for "Excel 2003 XML Spreadsheet". Users of Microsoft Excel can open the files by clicking on the "Open" button in the toolbar and selecting it from the list of file extensions that they have installed. This is a text-based spreadsheet application but there are some differences between XLS and XLSX files. For instance, an XLS file will not have any security while an XLSX file will be password protected.