Extract text from compressed archives (YZ1)
To convert YZ1 archives to another format, you need PeaZip or other Compressed software.
To convert other file formats to the "Compressed Archive File" file type, you need software like PeaZip or a similar tool.
The .yz1 file is a compressed archive container primarily developed by Yamazaki Satoshi for the Yz1 Archiver and later associated with Yazsoft and YouZip. Users typically encounter these files when downloading legacy software, old game mods, or niche Japanese archives from the early 2000s. To open these files locally, users typically rely on outdated specialized decompression tools like DeepFreezer or modern universal archivers such as PeaZip.
Relying on the .yz1 format today is highly problematic. It is an obsolete format lacking native support in modern operating systems like Windows, macOS, or Linux. Forcing users to download unverified third-party software just to extract a few files presents unnecessary security risks and severe workflow friction. Standard online converters often fail to process it because the format is closed and proprietary.
For pragmatic data sharing, users should extract or convert .yz1 archives to standardized formats like ZIP, 7Z, or TAR. Converting to a ZIP archive ensures the payload can be extracted on any modern device natively. While the specific Yamazaki compression ratios are lost during the transfer, the actual files inside remain perfectly intact.
Because .yz1 is a proprietary archive format, it is extremely difficult to open or convert without the original extraction utility. Standard extractors cannot parse its unique headers. However, just drag and drop your file onto convert.guru to identify the format, view its structure, and convert it when possible. Our engine can inspect the file and show internal content, and if our analysis detects a supported underlying or embedded format, viewing or conversion may still be possible.
Convert.Guru analyzes your YZ1 file, detects the exact format, and lets you read the text inside.
Users also converted HAP, JRC and CRU files.
If you want to convert YZ1 file to ZIP, RAR, 7Z, TAR, GZ, BZ2, XZ, LZMA, CAB, ACE, ARJ or LHA, you can use PeaZip or similar software from the "Archive Compression and Storage" category. In the File menu, look for Save As… or Export….
To convert XXE, 7Z, Z, PAK, LHA, DEB, UUE, TAR, LZH, ZIP, PKG or RAR files to YZ1, try PeaZip or another comparable tool in the "Archive Compression and Storage" category.
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our YZ1 converter.