Filename Extensions
If you are seeking information about file extensions, then you are in the right place at right time.

Details of extension .ann

Below, you can find answers to the following questions:

  • What is the .ann file?
  • Which program can create the .ann file?
  • Where can you find a description of the .ann format?
  • What can convert .ann files to a different format?
  • Which MIME-type is associated with the .ann extension?

2 extension(s) and 0 alias(es) in our database

Help Annotations .ann file icon

Help Annotations

ANN file is a Help Annotations.
Detailed description not available
Category: Other files
Application: -
Program name: -
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Windows Help Annotations .ann file icon

Windows Help Annotations

ANN fil is a Microsoft Windows Help Annotations. Windows Help is a component of Windows that is accessible from various Windows programs.
Category: Data files
Application: WinHelp
Program name: winhlp32.exe
Mime-type: application/octet-stream
Magic bytes (HEX): -
Magic string (ASCII): -
Related extensions:
Windows Help File

Other types of files may also use the .ann file extension. If you have helpful information about .ann extension, write to us!

Is it possible that the filename extension is misspelled?

We found the following similar extensions in our database:

i2 Analyst's Notebook Data
Psion Series 3 Agenda Document
Our Family Tree Data
Markush AMN File
Nero CD File List
Adobe Edge Animate Project
CYANA Torsion Angle File
Adobe Project ROME File
Deluxe Paint Animation

The .ann filename extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

anb (14), agn (7), ahn (6), amn (4), ang (3), an (3), nn (3), anm (2), anh (2)

Can't open a .ann file?

If you want to open a .ann file on your computer, you just need to have the appropriate program installed. If the .ann association isn't set correctly, you may receive the following error message:

Windows can't open this file:

File: example.ann

To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select from a list of programs that are installed on your computer.

To change file associations:

  • Right-click a file with the extension whose association you want to change, and then click Open With.
  • In the Open With dialog box, click the program whith which you want the file to open, or click Browse to locate the program that you want.
  • Select the Always use the selected program to open this kind of file check box.

Supported operating systems

Windows Server 2003/2008/2012, Windows 7, Windows 8, Linux, FreeBSD, NetBSD, OpenBSD, Mac OS X, iOS, Android

Rate this page

5 / 5 based on 22 user ratings.