1. Microsoft office File Formats

2. .doc It is a Microsoft word document

3. .docx Microsoft word open XML document is the newer version for Microsoft.

4. .wsp Microsoft Works Word Processor Document

5. .mdb It is a Microsoft Access Database

6. .pptx It is a Microsoft PowerPoint Open XML Document

7. .uccapilog It is a Microsoft UCC API Log File

8. .wks This is a Microsoft Works Spreadsheet

9. .xls This is a Microsoft Excel Spreadsheet

10. .xlsx This is a Microsoft Excel Open XML Document