since 2000
Opening a LUN File
The LUN file type is primarily associated with Lotus Notes.
What is a LUN file?
LUN files mostly belong to Lotus Notes. LUN files are Lotus Notes database files that hold structured data and design information for Notes applications.
Core Function: They store records, views, and schema details used in Lotus Notes environments. Design Role: They also serve as Logical Database Designer files, a format supported by DB-MAIN tools from Logic Works. To open or view a LUN file, use a Lotus Notes compatible application or the DB-MAIN tool (DB-MAIN website).
FilExt.com tip: Before editing, always backup the file to keep its data and structure intact.
FilExt.com tip: Before editing, always backup the file to keep its data and structure intact.
How can I open a LUN file?
You need a suitable software like Lotus Notes to open a LUN 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 LUN file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a LUN file directly in the browser:. Just drag the file onto this browser window and drop it.
Online LUN Text Viewer
or drag and drop it here
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Programs that open and convert LUN files:
- Lotus Notes
See the previous paragraphs to learn more about the main application. LUN files are often referred to as Lotus Notes databases because this type of file is primarily created or used by this software.
- DB-MAIN (Project File) by REVER S.A.DB-MAIN is a CASE tool dedicated to Database Application Engineering. It is designed to help developers and analysts in the development, reverse-engineering, reengineering, migration, integration, maintenance and evolution of data-centred applications.
LUN file format:
To find out what program is needed to open LUN files, you need to determine the file format. The first characters in a file identify the file format, for example, HTML files start with the bytes <html>. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. So you need a detailed analysis of a file to find out the format and the associated program. Our evaluation of the LUN files looks like this:
LUN is seldom used as a file extension and mainly uses a defined LUN format. The two most common formats are as follows:
- 95% of all LUN files start with the bytes DBLUN, which are crucial for this file format. The contents of these files are partially readable by a human. LUN files can be up to 670 KB in size, but are often around 18 KB - 74 KB. The file type was developed 10 years ago and is still in use today. The following keywords are characteristic: *SYSTEM, creation_date char[10], flag int, link rel, name char[100], object_id double, short_name char[12], sys_mo rel, sys_sch rel, semantics_desc desc, technical_desc desc, DBLUN10 and user_viewable. A common filename is GlobalDM_20180601.lun. Such LUN files store data about project, musterloesung, labobd, exercices, eigenedb, uebung, elaborati and esami.
The remaining 5% of all LUN files are files with no common format. The category is modelisation, aeroporto, insurance or premiers. If you want to find out what your LUN file contains, drag and drop it onto this page.
Technical Data for LUN File Extension
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: LunarEdit.Document
EXEFile: %ProgramFiles%\BLINGS~1\LUNARE~1\LUNARE~1.EXE %1
EXEFile: %ProgramFiles%\BLINGS~1\LUNARE~1\LUNARE~1.EXE %1
a lun database file is a special file format and should only be edited and saved with the appropriate software.
How to solve problems with LUN files
- Associate the LUN file extension with the correct application.
- Update your software that should actually open database files. Because only the current version supports the latest LUN file format. Search, therefore, e.g. on the manufacturer website after an available Lotus Notes update.
- To make sure that your LUN file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
- Click here to open your .LUN file online - secure, fast, and no downloads needed.