.139 — LHA Compressed Archive

Haruyasu Yoshizaki · 1987

Developer

Haruyasu Yoshizaki

Key Features

Efficient compression for various file types.
Supports multiple files and directory structures within a single archive.
Includes metadata such as filenames and timestamps.
Widely supported on older operating systems like DOS.

Best For

Compressing collections of files and folders.
Reducing file sizes for efficient storage and transfer.
Archiving data from legacy systems (e.g., DOS programs).
Distributing multiple related files as a single unit.

Less Ideal For

Modern multimedia file compression (use MP3, MP4, JPEG).
Creating self-extracting executables (use SFX archives).
Password-protected archives (many LHA tools lack robust encryption).
Real-time data streaming or compression.

Common Use Cases

Distributing software on BBS and early online services.
Archiving large amounts of data for storage or transmission.
Preserving older software packages from the DOS era.
Bundling game data or application resources.

How to Open It

On Windows, use a file archiver like 7-Zip or WinRAR, which often support LHA extraction.
On macOS, programs like The Unarchiver or Keka can open .139 files.
On Linux, use the `unar` command-line tool or graphical front-ends like File Roller.
Ensure you have a compatible LHA extraction utility installed on your operating system.

What is a .139 file?

The .139 file extension typically denotes an LHA compressed archive. LHA (Lempel-H Compression) is a popular file compression utility, especially in the DOS and early Windows eras, known for its efficient compression ratios. These archives can contain multiple files and directories, bundled together into a single file for easier storage and distribution. It was widely used for software distribution on bulletin board systems (BBS) and early online services. While less common today, it remains relevant for accessing older software and data.

Programs That Open .139 Files

Platform	Program
Windows	7-Zip	Free
	WinRAR	Paid
macOS	The Unarchiver	Free
	Keka	Free
Linux	unar	Free
	File Roller	Free
Android	Solid Explorer	Paid
iOS	iZip	Free

How to Convert .139 Files

Format	Method
.ZIP	7-Zip, WinRAR, unar
.TAR.GZ	7-Zip, WinRAR, unar

Common Problems with .139 Files

⚠️ Cannot open .139 file.

Ensure you have an LHA-compatible archive utility installed, such as 7-Zip (Windows), The Unarchiver (macOS), or unar (Linux).

⚠️ Corrupted archive.

Try re-downloading the file. Some archive utilities offer repair functions, but success is not guaranteed.

Frequently Asked Questions

What is LHA?▼

LHA is a file archiver and compressor, developed by Haruyasu Yoshizaki, known for its efficient compression and wide use in the DOS era.

Is .139 the same as .lha?▼

Yes, .139 is an alternative file extension for LHA archives, often used interchangeably with .lha.

Can I create .139 files?▼

While most utilities extract .139 files, creating them might require specific LHA compression tools or specific settings within broader archive managers.

Technical Details

LHA archives are binary files that employ a combination of dictionary-based compression algorithms, most notably LZSS, often combined with Huffman coding for improved efficiency. The file structure consists of a header followed by compressed data blocks. The header contains metadata like filenames, timestamps, and compression methods used for each file within the archive.

Did You Know?

The .139 extension was often used to avoid conflicts or to be less conspicuous than the .lha extension.

LHA was a very popular choice for distributing shareware and freeware on floppy disks and early online platforms.

Security Information

LHA archives themselves do not inherently contain malicious code, but like any archive format, they can be used to bundle executable files or other potentially harmful content. Always scan downloaded .139 files with antivirus software before opening.