Which filename extension is used for Excel workbooks?

Which filename extension is used for Excel workbooks?

• A. .xls
• B. .xlsx
• C. .docx
• D. .pptx

Answer: (B)

Excel workbooks typically use the .xlsx filename extension. This extension was introduced with Microsoft Excel 2007 and signifies that the file is in the Office Open XML format, which allows for smaller file sizes and improved data management compared to the previous binary format. The .xlsx format supports advanced features such as enhanced data recovery, better integration with other applications, and the ability to store a wider variety of information compared to older formats. The option .xls is the earlier Excel file format used prior to Excel 2007, reflecting the original binary format. This format is still recognized by newer versions of Excel but is not the preferred option due to the advantages of .xlsx. The extensions .docx and .pptx are associated with Microsoft Word and PowerPoint, respectively, and are not used for Excel files, making them irrelevant for this question.

Excel workbooks typically use the .xlsx filename extension. This extension was introduced with Microsoft Excel 2007 and signifies that the file is in the Office Open XML format, which allows for smaller file sizes and improved data management compared to the previous binary format. The .xlsx format supports advanced features such as enhanced data recovery, better integration with other applications, and the ability to store a wider variety of information compared to older formats.

The option .xls is the earlier Excel file format used prior to Excel 2007, reflecting the original binary format. This format is still recognized by newer versions of Excel but is not the preferred option due to the advantages of .xlsx. The extensions .docx and .pptx are associated with Microsoft Word and PowerPoint, respectively, and are not used for Excel files, making them irrelevant for this question.