A daily updated filename extension database!

NAC file extension

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

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

Table of Contents

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

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

✅ 3COM Router Firmware

NAC file is a 3COM Router Firmware. Firmware is a software program or set of instructions programmed on a hardware device.
NAC format description not yet available
Category: Data files
Application: 3COM Router
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
NAC aliases:
NAC related links:
NAC related extensions:

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

🚫 The .nac file extension is often given incorrectly!

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

ac, anc, bac, gac, hac, jac, mac, nad, naf, nas, nav, nax, nc, nca, nqc

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

Not Quite C Source Code
Geopath NC File
Quake 3 Bot Navigation Data
GNU Autoconf Input File
IAR System C-SPY Macro Definition Data
CART Grove Data
JaStaCry Encrypted File
NoteWorthy Composer Music
CaseWare Working Papers Client File
Moxy Portfolio Information Data

🔴 Can't open a .nac 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 .nac 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 .nac file extension, write to us!

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