Which is not a Microsoft Office extension?Group of answer choices.xlsx.txt.pptx.docx

Break Down the Problem

1. Identify the file extensions associated with Microsoft Office.
2. Compare the provided options to confirm which one is not associated with Microsoft Office.

Relevant Concepts

• Common Microsoft Office file extensions:
  • .xlsx - Excel spreadsheet
  • .pptx - PowerPoint presentation
  • .docx - Word document
  • .txt - Plain text file

Analysis and Detail

1. .xlsx: This extension is used for Microsoft Excel spreadsheets.
2. .pptx: This extension is associated with Microsoft PowerPoint presentations.
3. .docx: This extension pertains to Microsoft Word documents.
4. .txt: This is a generic plain text file extension and is not specific to Microsoft Office products.

Verify and Summarize

Upon reviewing the extensions, it is clear that .txt is a standard file format for text files, which can be created by various applications, not just Microsoft Office.

Final Answer

The extension that is not a Microsoft Office extension is .txt.