Question

Which of the following file extensions represents ready-to-run program/file?
1. .pdf
2. .exe
3. .doc
4. .text
5.

Answer 1

Correct Answer - Option 2 : .exe

The correct answer is .exe.

• .exe is a common filename extension denoting an executable file (the main execution point of a computer program) for Microsoft Windows. 
• A file extension or file name extension is the ending of a file that helps identify the type of file in operating systems, such as Microsoft Windows.
  • In Microsoft Windows, the file name extension is a period that is often followed by three characters but may also be one, two, or four characters long.

Extension	Format
.doc	Microsoft Word document before Word 2007
.pdf	Portable Document Format file
.text	Unformatted text file
.aac	Windows audio file
.eml	Email file created by Outlook Express, Windows Live Mail, and other programs.
.exe	Executable program file
.jpg, jpeg	Joint Photographic Experts Group photo file
.png	Portable Network Graphics File
.ppsx	Microsoft PowePoint slide show
.xlsx	Microsoft Excel Workbook after excel 2007.