.YZ1 File Extension

Yamazaki Zipper Archive

Developer Yamazaki Satoshi
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What is a YZ1 file?

A YZ1 file is an archive saved in the Yamazaki Zipper (YZ1) format, which is supported by several compression utilities, including Yamazaki Deep Freezer. The YZ1 format is similar to .LZH and .ZIP compression methods and supports password-protection.

More Information

Screenshot of a .yz1 file in ZipGenius 6
YZ1 file open in ZipGenius 6

Satoshi Yamazaki developed the YZ1 archive format. It was the default format in which the Yamazaki ZIPPER and Deep Freezer utilities (now discontinued Windows applications) compressed files, often text documents.

Since many compression utilities no longer support the format, the format is obscure. However, you may still encounter an old YZ1 archive on your computer or receive one from another Windows user.

How to open a YZ1 file

You can open YZ1 files with various compression utilities in Windows, including IZArc, TUGZip, and ZipGenius.

How to convert a YZ1 file

Various compression utilities, such as ZipGenius and IZArc, can convert YZ1 files to other formats.

For example, ZipGenius can extract files from YZ1 archives, then compress them in other formats, including the following types:

  • .ZIP - Zipped File
  • .7Z - 7-Zip Compressed File
  • .TAR - Consolidated Unix File Archive
  • .CAB - Windows Cabinet File
  • .LZH - LZH Compressed File
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Programs that open or reference YZ1 files

Windows
IZArc
Free
TUGZip
Free
ZipGenius
Free

Verified by FileInfo.com

The FileInfo.com team has independently researched the Yamazaki Zipper Archive file format and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.

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