All about LLD Files

The LLD file type is primarily associated with LOGO! Soft Comfort.

LLD	File extension: LLD
	File type:	Internal project file

What is an LLD file?

LLD files mostly belong to LOGO! Soft Comfort. The LLD file is used mainly as an LOGO! Soft Comfort project file in Siemens automation systems. It stores programming and configuration data that control Siemens LOGO! devices.
When you open an LLD file with Siemens LOGO! Soft Comfort, you can view and edit the logic used for small-scale automation.
Key details summarized by FilExt.com include:

LOGO! Soft Comfort File – This file holds configuration and program data for Siemens LOGO! devices. For details, visit the Siemens website.
Lingea Dictionary File – In a few cases, LLD files are used to store dictionary information for Lingea Lexicon tools. See more at the Lingea website.

FilExt.com note: To view an LLD file, use the software that originally created it. Typically, Siemens LOGO! Soft Comfort is used, while Lingea Lexicon 5 applies for dictionary files.

How can I open an LLD file?

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

Online LLD Text Viewer

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Programs that open and convert LLD files:

LOGO! Soft Comfort
See the previous paragraphs to learn more about the main application. LLD files are often referred to as LOGO! Soft Comfort data files because this type of file is primarily created or used by this software.
Links Language Data File

LLD format details:

Every file has a defined file format, i.e. how the data is arranged in the file. The file format can be deduced from the file extension and the signature. File extension, signature and file format must match; otherwise errors will occur when the file is opened. When there is a problem with a file, the first step to solving it is to determine the file format. Our evaluation of the LLD files is as follows:

The LLD file extension is rarely used and mainly uses a defined LLD format. The two most popular formats are as follows:

70% of all LLD files use the popular Java file format. This format is used to save Java objects to a file (ex. save game state as file) via object serialization. Such a Java object may contain functions and data like settings, images or videos. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. The files are often between 30 KB and 260 KB in size. The file type was developed 10 years ago and is still in use today. The keywords +DE.siemens.ad.pdraw.figures.OutputIfcFigure, -DE.siemens.ad.kop.figures.LeftPowerRailFigureP, LDE/siemens/ad/logo/model/Block;xr, fBlockt and serializedDataVersionL are typical for these files. Such files are related to circuit, diagram, control, program and logo.
6% of all LLD files have the same signature Lingea Dictionary. (c) Lingea s.r.o.. They consist of unreadable binary data. LLD files can be up to 100 MB in size, but are often around 1 MB - 100 MB. The keywords (c) Lingea s.r.o and Lingea Dictionary are typical for these files.

The remaining 24% of all LLD files are files with no common format. Drag & drop your file here to see the file format and a preview of your LLD file!

Technical Data for LLD File Extension

File classification:

Data

Related files:

lad, fbd, plc, ldd, ldl, dll, iid, lxf, lsc, old, txt, zip, df, stl, log

an lld Internal project file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with LLD files

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