All about SLT Files

The SLT file type is primarily associated with Gallery Lock.

SLTFile Extension SLT
File extension: SLT
File type:  thumbnail file

What is an SLT file

SLT files mostly belong to Gallery Lock by Morrison Software. SLT stands for salt. This extension is used by a folder in Firefox. Firefox is a free and open-source web browser from Mozilla. The salt folder stores profile data in Firefox for a user. The location of a profile has three parts. These are the base, the name, and the salt. The base is the main directory where user profiles are stored. In Windows, Users\Profile\AppData\Roaming\Mozilla\Firefox\Profiles is typically the base, but it may differ depending on the system. The Profiles folder contains the name folder for each profile, which is identified by the profile name. The name folder contains the salt, which is a folder named with eight random alphanumeric characters and has the SLT extension. The purpose of storing profile data in a randomly named directory is making it difficult for malicious programs to access user data. The use of a random string of characters to secure data is called salting.

How to open an SLT file

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

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Programs that open and convert SLT files:

  1. Gallery Lock by Morrison Software
    See the previous paragraphs to learn more about the main application. SLT files are often referred to as Gallery Lock raster images because this type of file is primarily created or used by this software.
  2. FinSafe Terminal Smartlet
    FinSafe terminal smartlet is a small application running in a secure environment of a Finsafe terminal. The SLT file is a terminal smartlet data file. This file format is classified as Data. Related links: Emulation Newbies Start Here!, Emulator Zone
  3. Forza Horizon (game database file) by Xbox Game Studios
    Forza Horizon is a racing video game series developed by Playground Games and published by Microsoft owned Xbox Game Studios. This game provides open-world locations with several terrain types. The STL file is the game database file. This file format is classified as Game. Related links: Forums, Forza Horizon on Wikipedia, Forum Thread
  4. Hyperslate (template file) by Motalen
    HyperSlate is a LAMA (Logic: A Modern Approach) online AI (Artificial intelligence) software system published by Motalen. It is an online hypergraphical system for building proofs, arguments, and programs using artificial intelligence. The SLT file is a template file. This file format is classified as Data. Related links: Introduction to Logic, LAMA - LogicAModernApproach, Forum
  5. K-Meleon (browser profile settings file) by Christophe Thibault
    K-Meleon is a customizable open-source internet browser developed by Christophe Thibault for Windows operating systems. It uses the secure Goanna engine based on the Gecko engine. K-Meleon is able to run on legacy hardware and operating systems that other modern internet browsers no longer support. The SLT file contains the user's browser profile settings. This file format is classified as Settings. Related links: Documentation, K-Meleon on Wikipedia, Forums
  6. Monster Hunter: World (shop list file) by Capcom
    Monster Hunter: World is an RPG (Role-Playing Game) played from a third-person perspective and developed by Capcom for PlayStation 4, Xbox One, and Windows operating systems. The SLT file is a shop list file used for altering the shop's inventory. This file format is classified as Game. Related links: The Game Walkthrough, Forum Thread, Monster Hunter: World on Wikipedia
  7. OpenFlash Manager (update template archive) by Openflash Performance
    OpenFlash Manager is the software developed by Openflash Performance for uploading and downloading tune files or data logs from OpenFlash Tablet. Openflash Tablet is a portable handheld diagnostic, data acquisition, and ECU (Electronic Control Unit) software update device. The SLT file is an update template archive. This file format is classified as Data. Related links: OFT2 SLT File Example, User Guide, FAQ
  8. Sage (letter file) by Sage Group
    Sage is an accounting and financial management software developed by Sage Group for managing accounting, human resources, payroll, payments, etc. The SLT file is a letter file. It is an old document file extension created by earlier versions of Report Designer feature and needs to be converted for use in newer versions of Sage software. This file format is classified as Data. Related links: Sage 50 Cloud on Wikipedia, Sage 100 Getting Started, Forum Thread
  9. SALT (transcript file) by SALT Software
    SALT (Systematic Analysis of Language Transcripts) software is developed by SALT Software to improve the assessment of language acquisition and disorders through the use of language samples. It provides a transcription editor, standard reports, and reference databases to standardize the process of eliciting, transcribing, and analyzing language samples. The SLT file is a transcript file. This file format is classified as Data. Related links: SALT Reference Book, Blog, FAQ
  10. Speccy (super-level loader snapshot file) by Marat Fayzullin
    Speccy is a ZX Spectrum emulator developed by Marat Fayzullin for emulating 16kB, 48kB, and 128kB versions of Sinclair ZX Spectrum. The SLT file is a super-level loader snapshot file. The super-level loader feature was developed by Damien Burke to replace the multi-file format with a single snapshot file that contains all the level data files. Snapshot files represent the contents of the system memory at a particular moment in time. This file format is classified as Data. Related links: SLT File Format, Speccy Introduction, Forums
  11. TurboCAD (symbol library file) by IMSI Design
    TurboCAD is a 2D/3D design and drafting CAD (Computer-Aided Design) software developed by IMSI Design for macOS and Windows operating systems. The SLT file is a symbol library file that contains what or which files are in the library. This file format is classified as CAD. Related links: TurboCAD on Wikipedia, Installation Guide, Forum Thread

SLT file format:

The file format determines how the data is stored 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. If there are problems opening a file, you must first determine the file format used. Our analysis of the SLT files produces the following result:

SLT is a very commonly used file extension and includes different formats for the applicable programs. The two most popular formats are as follows:

All other SLT files (25%) have no uniform format, the following 11 formats exist: UTF-8, ZIP, SQL, ORDER, LibVersion and DESCRIPTIONS. The category is page, transcript, saqns, khss, iceborne, universal, toyota, mazda or fiat. Drag & drop your file here to see the file format and a preview of your SLT file!

Technical Data for SLT File Extension

File classification:
Raster Image
Related files:

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: RepDesFile
EXEFile: %SystemRoot%\system32\REPDES32.EXE %1

ProgramID: Salt.Document
EXEFile: C:\Salt\Salt.exe %1

ProgramID: RepDesFile
EXEFile: %ProgramFiles%\SFW\REPDES.EXE


an slt thumbnail file is a special file format by Morrison Software and should only be edited and saved with the appropriate software.

How to solve problems with SLT files

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