तैयारी4नेट

https://en.wikipedia.org

Word

• doc – "Microsoft Word 97 - 2003 Document"
• .dot – "Microsoft Word 97 - 2003 Template"
• .wbk -"Microsoft Word Backup Document"

• .docx – Word document
• .docm – Word macro-enabled document; 
• .dotx – Word template
• .dotm – Word macro-enabled template; 
• .docb – Word binary documen

Excel

• .xls – Legacy Excel worksheets; officially designated "Microsoft Excel 97-2003 Worksheet"
• .xlt – Legacy Excel templates; officially designated "Microsoft Excel 97-2003 Template"
• .xlm – Legacy Excel macro

PowerPoint

• .ppt – Legacy PowerPoint presentation
• .pot – Legacy PowerPoint template
• .pps – Legacy PowerPoint slideshow

• .pptx – PowerPoint presentation
• .pptm – PowerPoint macro-enabled presentation
• .potx – PowerPoint template
• .potm – PowerPoint macro-enabled template
• .ppam – PowerPoint add-in
• .ppsx – PowerPoint slideshow
• .ppsm – PowerPoint macro-enabled slideshow
• .sldx – PowerPoint slide
• .sldm – PowerPoint macro-enabled slide

Access

• ACCDB – The file extension for the new Office Access 2007 file format. This takes the place of the MDB file extension.
• ACCDE – The file extension for Office Access 2007 files that are in "execute only" mode. ACCDE files have all Visual Basic for Applications (VBA) source code hidden. A user of an ACCDE file can only execute VBA code, but not view or modify it. ACCDE takes the place of the MDE file extension.
• ACCDT – The file extension for Access Database Templates.
• ACCDR – is a new file extension that enables you to open a database in runtime mode. By simply changing a database's file extension from .accdb to .accdr, you can create a "locked-down" version of your Office Access database. You can change the file extension back to .accdb to restore full functionality.