Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.LST
File Type
List File
Category
Data
Best first step
Use compatible software
Quick Summary
A practical overview of the .lst file format
A file with the LST extension is typically a plain text file that contains a list of information. Because it is saved in a standard text format, it can be opened and read by almost any text editor. LST files are used by various software programs for different purposes. For example, compilers and as…
File extension
.LST
File type
List File
Category
Data
Recommended action
Open with a trusted compatible app
How to open a .lst file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .lst.
- Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
- Update the application if the file was created by a newer version of the software.
- Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.
What is a .lst file?
File extension details and usage information
A file with the LST extension is typically a plain text file that contains a list of information. Because it is saved in a standard text format, it can be opened and read by almost any text editor. LST files are used by various software programs for different purposes. For example, compilers and assemblers often generate LST files to output a listing of the compiled code alongside error messages and warnings. In other contexts, LST files might contain a list of files to be installed by an installer, a database export, or a simple list of items used by a specific application. Since there is no single standard for what an LST file contains, its contents depend entirely on the program that created it.
Software Compatibility
Programs that may open or work with .lst files
macOS
Compatible applications
Linux
Compatible applications
Mobile
Mobile applications
Can .lst files be converted?
Options for saving or exporting this file to another format
In many cases, a .lst file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.
- Use the original software that created the file when possible.
- Check whether the application supports exporting to common formats.
- Be careful with online converters when working with private, business, or sensitive files.
- If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .lst file.
Why can't I open a .lst file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .lst format.
Incorrect extension
The file extension may have been renamed manually, even though the actual file format is different.
Corrupted file
The file may be incomplete, damaged during download, or transferred incorrectly.
Outdated app
Your software may need to be updated before it can open newer versions of this file format.
Frequently Asked Questions
Common questions about .lst files
To open a .lst file, use software that supports this file format.
- Microsoft Notepad
- Notepad++
- UltraEdit
- Visual Studio Code
- Apple TextEdit
Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.
- Verify that the file extension is correct.
- Install or update compatible software.
- Try another application that supports this format.
- Check whether the file is corrupted, incomplete, or encrypted.
A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.
File safety tips
Use caution with unknown files
Only open files from trusted sources. Before opening a .lst file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.