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H323 file extension

The table below provides useful information about the .h323 file extension. It answers questions such as:

  • What is the .h323 file?
  • What program do I need to open a .h323 file?
  • How can the .h323 file be opened, edited or printed?
  • How can I convert .h323 files to another format?

Table of Contents

We hope you find this page helpful and a valuable resource!

0 extension(s) and 1 alias(es) found in database

✅ H.323 IP Telephony Data

323 file is a H.323 IP Telephony data.
323 format description not yet available
Category: Data files
Application: Microsoft NetMeeting
Mime-type: text/h323
Magic number: -
Magic string: -
Sample: -
323 aliases:
323 related links:
323 related extensions:

Other types of files may also use the .h323 file extension.

🚫 The .h323 file extension is often given incorrectly!

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

323, h32

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

H.323 IP Telephony Data
Borland C++ 32bit Include File

🔴 Can't open a .h323 file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows cannot open this file:


To open this file, Windows needs to know what program you want to use to open it...

If you don't know how to set the .h323 file association, check the FAQ.

🔴 Can I change the extension of files?

Changing the filename extension of a file is not a good idea. When you change a file's extension, you change the way programs on your computer read the file. The problem is, changing the file extension does not change the file format.

If you have helpful information about the .h323 file extension, write to us!

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