Opening HNS Files

The HNS file type is primarily associated with Hallo Northern Sky (HNSKY).

HNS	File extension: HNS
	File type:	Settings

What is an HNS file

HNS files mostly belong to Hallo Northern Sky (HNSKY) by Han Kleijn. Hallo Northern Sky or HNSKY is a free planetarium program for windows with 26000 deep sky objects and all stars to magnitude 12 and with the original GSC CD's, GSC-ACT or the USNO UCAC2 to magnitude 16.

How can I open an HNS file?

You need a suitable software like Hallo Northern Sky (HNSKY) to open an HNS file. You need a suitable software like Hallo Northern Sky (HNSKY) from Han Kleijn to open an HNS file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your HNS file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a HNS file directly in the browser:. Just drag the file onto this browser window and drop it.

Online HNS Text Viewer

Choose your .hns file to analyze

or drag and drop it here

Online File Viewer

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.HNS File Not Opening? How to Fix It:

Because .HNS files can originate from different programs, they aren't universally openable.

Identify the Source: Receiving this from an astronomer or stargazing workflow suggests it is a planetarium software settings file.
Check the Header: Open the file in a text editor or hex viewer to inspect the first bytes:
- Readable text or [Settings] indicates a standard configuration file.
- Scrambled characters suggest a proprietary binary format.
Use the Original Software: The original program is usually required; try Hallo Northern Sky (HNSKY) by Han Kleijn, or ask the sender if uncertain.
Use this Webpage: Drag and drop your .HNS file into our viewer to detect the format, extract readable text/metadata, and preview when possible.

Technical Data for HNS File Extension

Related files:

hnd, acw, otoset

Mime type:

application/octet-stream

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and file extension information submitted by users.

ProgramID: httpExplorer.Document
EXEFile: %ProgramFiles%\NETTOOLS\HTTPEX~1\HTTPEX~1.EXE /dde

an hns Setting is a special file format by Han Kleijn and should only be edited and saved with the appropriate software.

How to solve problems with HNS files

Associate the HNS file extension with the correct application.
Update your software that should actually open settings. Because only the current version supports the latest HNS file format. Search, therefore, e.g. on the Han Kleijn manufacturer website after an available Hallo Northern Sky (HNSKY) update.
To make sure that your HNS file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .HNS file online - secure, fast, and no downloads needed.