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NSPL file extension

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

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

✅ Netscape Navigator Plug-in

NSPL file is a Netscape Navigator Plug-in. Netscape Navigator was a proprietary web browser. It was the dominant browser in terms of usage share in the 1990s.
NSPL format description not yet available
Category: Data files
Application: Netscape Navigator
Mime-type: application/octet-stream
Magic number: -
Magic string: -
Sample: -
NSPL aliases:
NSPL related links:
NSPL related extensions:
Netscape Navigator Temporary File

Netscape Navigator Java Classes File

Netscape Communicator Address Book

Netscape for Mac User Profile Data

Netscape Communicator Locale Data

Netscape Navigator Addressbook Identification Data

Netscape for Mac Cookie Data

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

🚫 The .nspl file extension is often given incorrectly!

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

mspl, npl, nsl, nsp, nspi, spl

Is it possible that the filename extension is misspelled?

We found the following similar file extensions in our database:

KayPentax CSL Audio
Nintendo Switch Submission Package
Navicat for SQL Server Import Wizard Profile
RPAS Configuration Data
WinView/400 Report Data
Nokia Playlist
Infinity Engine Spell Data
FutureSplash Animator Document
TCMP Playlist
Windows Spool Data

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

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