LS to TXT Converter

LS to TXT Conversion Explained

Converting .LS to .TXT changes a FANUC robot program listing file into a standard plain text document. Because an .LS file is already an ASCII text representation of a compiled .TP (Teach Pendant) binary file, this conversion does not decode binary data. Instead, it changes the file extension and standardizes the text encoding for universal access.

People convert .LS to .TXT to share robot logic with non-engineers, bypass strict email filters that block unknown extensions, or store code in generic document management systems. You gain universal compatibility and easy sharing. You lose immediate compiler readiness. FANUC compilation tools require the .LS extension to convert the text back into a runnable .TP file. If you need to run the code on a robot controller, converting to .TXT is a bad idea unless you plan to rename it back later.

Typical Tasks and Users

• Robotics Engineers: Sharing specific motion routines or logic snippets with IT staff or project managers who do not use robotics software.
• Software Developers: Tracking robot program changes using version control systems like Git, which handle .TXT diffs natively.
• Technical Writers: Embedding raw robot instructions into standard operating procedures or maintenance documentation.
• Field Technicians: Sending program backups over corporate networks where firewalls block unrecognized file types like .LS.

Software & Tool Support

Because both formats are text-based, you can open and edit them with standard text editors and development environments.

• Notepad++: A free Windows editor often used by engineers with custom FANUC syntax highlighting.
• Visual Studio Code: A free, cross-platform IDE that supports FANUC extensions for reading .LS files.
• FANUC ROBOGUIDE: The official paid simulation software used to generate .LS files from binary .TP files.
• Standard OS Tools: Windows Notepad, macOS TextEdit, and Linux Nano can open both formats natively.

Pros and Cons of the Conversion

• Pros:

  • Universal Compatibility: .TXT files open on any device, operating system, or mobile phone without specialized software.
  • Easy Sharing: Standard text files easily pass through strict corporate email filters and security firewalls.
  • Documentation: Generic text files are easier to import into wikis, manuals, and database systems.

• Cons:

  • Compilation Failure: The FANUC MakeTP tool will not compile a .TXT file. It strictly requires the .LS extension.
  • Loss of Syntax Highlighting: Code editors automatically recognize .TXT as plain text, disabling any FANUC-specific color coding you might have installed.
  • Redundancy: Because .LS is already plain text, creating a separate .TXT file creates duplicate data to manage.

Conversion Difficulties & Why Convert.Guru

The technical difficulty in converting .LS to .TXT is not rendering or rasterizing, but preserving character encoding and line endings. FANUC controllers and compilers are highly sensitive to line break formats. If a conversion tool or manual copy-paste changes Windows-style line endings (CRLF) to Linux-style line endings (LF), or alters the ASCII encoding to a different UTF standard, the code may fail to compile if renamed back to .LS.

Convert.Guru handles this conversion safely. It processes the file extension change while strictly preserving the original ASCII encoding, line breaks, and whitespace formatting. This ensures the robot logic remains structurally intact and technically accurate, without introducing hidden formatting errors.

LS vs. TXT: What is the better choice?

Which format should you choose?

Choose .LS if you are actively programming, simulating in ROBOGUIDE, or preparing to compile the code into a .TP binary file for a physical FANUC robot controller.

Choose .TXT if you need to email the code through strict firewalls, archive the logic in a generic database, or share the program with personnel who do not have robotics software.

Avoid this conversion if you simply want to read the code on your own machine. You can open an .LS file directly in any text editor without converting it.

Conclusion

Converting .LS to .TXT makes sense when you need to share FANUC robot programs across strict networks or with non-technical teams. The biggest limitation to watch for is the loss of compiler readiness; you must restore the .LS extension before the code can be sent to a robot. Convert.Guru is a reliable choice for this exact conversion because it safely standardizes the file type while preserving the strict line endings and character encoding required by industrial robotics systems.