Is Excel workbook XLS or XLSX?

Is Excel workbook the same as XLSX?

xlm). An ISO strict version of the Excel Workbook file format (. xlsx). The XML-based and macro-enabled file format for Excel 2007-2013. ... File formats that are supported in Excel.FormatExtensionClipboard type identifiersDIF.difData Interchange Format.

Which Excel file is called a workbook?

In Excel Starter, a spreadsheet is called a worksheet, and worksheets are stored in a file called a workbook. Workbooks can have one or more worksheets in them.

What is the difference between XLS and XLSX file?

Data is arranged in an XLS file as binary streams in the form of a compound file as described in [MS-XLS]. In contrast, an XLSX file is based on Office Open XML format that stores data in compressed XML files in ZIP format. The underlying structure and files can be examined by simply unzipping the . xlsx file.

When did Excel change from XLS to XLSX?

XLS vs XLSX In the Microsoft Office 2007 release, Microsoft decided to change the default file format to a different format and adding and additional x for all their document extensions; for Excel, this ended up as XLSX.