HND

hnd icon

HNSKY deep-sky database file

File type: Various data file

An .hnd file is a deep-sky database file used by HNSKY (Hallo Northern Sky), an astronomy program for Microsoft Windows.

Found 2 different file type records with the same hnd filename suffix.

What is hnd file?

File type category:
Various data file

Date updated: November 2, 2026

The HNSKY deep-sky database format is associated with Hallo Northern Sky, software developed by Han Kleijn. An HND file contains database information about deep-sky astronomical objects for use within the program.

HNSKY reads this data as part of its astronomy databases when displaying and searching objects. The format is intended for use by HNSKY on Microsoft Windows rather than as a general-purpose database exchange format.

How to open hnd file?

Open the .hnd file with HNSKY on Microsoft Windows. The file is normally used by the program as part of its deep-sky database rather than opened as a document.

How to convert hnd file?

It is not known whether .hnd files can be converted to another format. HNSKY uses these files directly as deep-sky database data.

Technical details

File signature
HEX 48 4E 53 4B 59 20 44 45 45 50 53 4B 59 20 44 41 54
ASCII HNSKY DEEPSKY DAT

Suggested software to open hnd file:

Associated software actions with the hnd file

Software applications that can open hnd files:

Microsoft Windows

Software applications that can edit hnd files:

Microsoft Windows

Software capable of saving hnd files:

Microsoft Windows

Software apps that create hnd files:

Microsoft Windows

HelpNDoc project

File type category:
Document file

Date updated: October 12, 2018

The hnd file extension is associated with the HelpNDoc, a document authoring tool for Microsoft Windows that allows users to create books, help, manuals and documentations in various file formats.

The hnd file contains saved project created in it.

How to open hnd file?

Use HelpNDoc to open *.hnd project files.

How to convert hnd file?

HelpNDoc is able to export *.hnd files to CHM, HTML, PDF, Word, iPhone, Android, ePub and Kindle eBooks.

Suggested software to open hnd file:

Associated software actions with the hnd file

Software applications that can open hnd files:

Microsoft Windows

Software applications that can edit hnd files:

Microsoft Windows

Software capable of saving hnd files:

Microsoft Windows

Software apps that create hnd files:

Microsoft Windows

Convert .hnd files

Convert .hnd to other formats

Online conversions and file conversion information are provided by 101convert.com.

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