Convert LST to TXT

A receiving program, script, or device may require a .txt filename even when the source .lst file already contains plain text. Saving it as TXT can also make the data easier to edit, search, share, or archive, but changing the extension cannot decode a proprietary or binary file.

What the LST format is

.lst is an extension used by unrelated programs rather than one standardized format. It can identify file lists, compiler or assembler listings, logs, playlists, database exports, and records from engineering, electronics, PLC, or other specialized software.

Many LST files contain ordinary characters and line breaks; others use application-specific structures or binary data. Open a copy in Notepad++, Visual Studio Code, or another text editor. Readable lines indicate a text-based file, while unreadable symbols or a format error indicate that the creating application should handle the file.

What the TXT format is

TXT is a plain-text format supported by common operating systems, editors, scripts, email tools, and version-control systems. It stores characters without page layout, images, formulas, syntax coloring, or application-specific formatting.

TXT files can use different encodings, including UTF-8, UTF-16, Windows-1252, and legacy code pages. The correct encoding is necessary for accented characters, non-Latin scripts, and special symbols to survive the conversion.

How to convert a text-based LST file

1. Keep an untouched backup of the original file.
2. Open a copy in Notepad++ or Visual Studio Code and check the text, line breaks, columns, and special characters.
3. In Notepad++, choose File → Save As, enter a name ending in .txt, select the required encoding, and save. Use UTF-8 when the source and receiving program support it; preserve the original encoding when compatibility requires it.
4. In Visual Studio Code, choose File → Save As and enter a .txt filename. Use the encoding indicator in the status bar to reopen or save the file with a different encoding.

If the file is already plain text and no encoding change is needed, renaming is sufficient. In Windows File Explorer, enable View → Show → File name extensions, rename report.lst to report.txt, and confirm the extension change. Renaming changes only the filename; it does not rewrite bytes, line endings, or encoding.

Command-line options

For an unchanged byte-for-byte copy on Windows, use Command Prompt:

copy /b report.lst report.txt

To read and rewrite the content as UTF-8 in PowerShell, use:

Get-Content -Raw -LiteralPath 'report.lst' | Set-Content -LiteralPath 'report.txt' -Encoding utf8

The PowerShell command interprets and rewrites characters, so it can change line endings, add or remove an encoding marker depending on the PowerShell version, or damage bytes when the source encoding is misidentified. Use the binary copy when byte preservation matters.

How to handle a proprietary or binary LST file

Open the file in the program that created it and use a command such as File → Export, Save As, or Report → Export → Text/ASCII. Select TXT, ASCII, or UTF-8 if the application offers those choices. If TXT is unavailable, export to CSV, XML, or another documented format first, then open that output and save it as plain text if necessary.

Online services such as Zamzar and CloudConvert can be tested for nonconfidential files only when their current format list explicitly accepts LST or the file is recognized as plain text. Upload a copy, verify the detected format, and avoid online conversion for source code, credentials, private logs, or regulated data.

Quality and compatibility checks

• TXT cannot preserve proprietary formatting, calculated values, images, embedded metadata, or database relationships.
• Check for replacement characters such as �, truncated lines, altered columns, unexpected blank lines, and incorrect line endings.
• For scripts and devices, preserve the required encoding, delimiter, final newline, and CRLF or LF line-ending style. Older systems may require ASCII or a local ANSI code page instead of UTF-8.
• For critical files, compare the converted line count and, when an unchanged copy was intended, verify its checksum before deleting the original.