All about LSD Files

The LSD file type is primarily associated with Yume Nikki, ABBYY Lingvo.

LSD	File extension: LSD
	File type:	data file

What is an LSD file?

LSD files mostly belong to Yume Nikki, ABBYY Lingvo. Game Save files: The LSD file can be a save file for games such as Yume Nikki or those built with RPG Maker 2003. These files record your game progress and settings.
Dictionary Data:
Some LSD files are used by the ABBYY Lingvo software to store dictionary entries and language data. For more details, visit ABBYY's website.
Laser Scanning & Localization Data:
Other LSD files may hold laser scanning or LIDAR data (often noted as a laser scan or Line scan data file) created by programs like LoopService. Also, localization files for sound (as seen in Borderlands 2) or string data (used by Pokémon Go; see Pokémon Go Live) use the same extension.
Label Design Files:
A few instances of LSD files are label design files from applications such as those provided by Labelshop (LabelShop webpage).
Key Points summarized by FilExt.com:

Each LSD file is created by a specific program and may follow a unique internal format.

Check the file’s origin to find the correct application to open or view it.

Using the right software is essential for accessing the stored data.

How to open LSD files

You need a suitable software like Yume Nikki, ABBYY Lingvo to open an LSD 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 LSD file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a LSD file directly in the browser:. Just drag the file onto this browser window and drop it.

Online LSD Text Viewer

Choose your .lsd file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert LSD files:

Yume Nikki, ABBYY Lingvo
See the previous paragraphs to learn more about the main application. LSD files are often referred to as Yume Nikki, ABBYY Lingvo data files because this type of file is primarily created or used by this software.
ABBYY Lingvo (Non-changaeble System Dictionary) by ABBYY Software House
[Russian Site] The identifying characters used for this association are - Hex: 4C 69 6E 67 56 6F 00 00, ASCII: LingVo.
Fifa World Cup Game Data Environment File
LECTURNITY (Presentation File Source Format) by IMC AG
A learning tool based on PowerPoint. [German site]
RPG Maker (2000/2003 Saved Game File) by Enterbrain
Related links: German RPG Maker Community, RM2k Corner, Alternate German Site

LSD file format details:

If you can determine the file format, the associated program can also be determined. 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 a detailed analysis of a file is vital in order to determine the format and the associated program. Our analysis of the LSD files produces the following result:

The LSD file type is a very commonly used file extension and covers different formats for different programs. The two most popular formats are as follows:

45% of all LSD files are associated with RPG Maker 2000/2003 Save Data. The contents of these files cannot be read by a human; only a computer program can interpret the data. Most of these files are 8 KB to 190 KB in size. The file type is relatively new. Several words can almost always be found in the files, e.g. LcfSaveDatad. Some examples of file names are Save01.lsd or Save02.lsd. Files like these are sometimes connected to yume.
25% of all LSD files belong to ABBYY Lingvo dictionary. They consist of illegible, cryptic characters. The files are 13 KB to 430 MB in size, with a median of 22 MB. The keywords LingVo and En-En are typical for these files. A common filename is en-en_CALD4.lsd or En-En-Longman_DOCE5_v15.lsd. Such LSD files store data about cald, abrv, longman, doce, universal and enru.

The remaining 30% of all LSD files are different files with different signatures, such as PointCab LSD binary pointcloud data, name, Qtq, FDSL, Logo, TeamElement, Dat and SOLAIR. They are often associated with service, loop, league, dictionary, name or ruen. You can get all the details of your LSD file by dragging it onto this page or by clicking the button "Choose your .lsd file to analyze" above.

Technical Data for LSD File Extension

File classification:

Data

Identifier:

Hex: 4C 69 6E 67 56 6F 00 00, ASCII: LingVo (provided by TrID database)

Related files:

las, lsc, loc, ldf, lsdx, isd, lmu, dsl, lst, rar, ldd, dyn, lcd, zip, lds, lmt, lmd, ann, dll, sav, ldb, pdf, mp4, inp, dat

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: LANScan.Database
EXEFile: LANScan.EXE

an lsd data file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with LSD files

Associate the LSD file extension with the correct application.
Update your software that should actually open data files. Because only the current version supports the latest LSD file format. Search, therefore, e.g. on the manufacturer website after an available Yume Nikki, ABBYY Lingvo update.
To make sure that your LSD file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .LSD file online - secure, fast, and no downloads needed.