All about TZST Files

The TZST file type is primarily associated with Duplicati.

TZST	File extension: TZST
	File type:	compressed archive

What is a TZST file?

TZST files mostly belong to Duplicati. TZST files are Zstandard compressed tarball archives used mainly by the backup software Duplicati.
This file format works by first grouping files together into a tar archive (a tarball) and then applying the Zstandard compression algorithm to reduce the file size. This method is popular for backing up data because it efficiently compresses large sets of files while maintaining quick decompression speeds.
Consider these details:

Purpose: Stores backup data in a single, compressed file.

Functionality: Bundles files into a tar archive and compresses them with Zstandard.

Compatibility: Primarily used by Duplicati, but can also be handled by command-line tools (like zstd) and compatible tar utilities.

FilExt.com tip: For additional support, visit the Duplicati website.

How do you open TZST files?

You need a suitable software like Duplicati to open a TZST file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your TZST file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a TZST file directly in the browser:. Just drag the file onto this browser window and drop it.

Online TZST Text Viewer

Choose your .tzst file to analyze

or drag and drop it here

Online File Viewer

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TZST file format:

Why is it important to know the file format? This is the only way to find out which program to use to open the file. Each file format has a unique extension and almost always a unique signature. For example, Microsoft Word documents have the extension .docx and the signature (usually the first 3 characters in this file) PK. Frequently, however, one file extension is used by different programs for different file formats, and one file format for different file extensions. When there is a problem with a file, the first step to solving it is to determine the file format. Our evaluation of the TZST files is as follows:

TZST is not that commonly used as a file extension. This file type mainly uses a defined TZST format. The file formats most commonly found in TZST files are:

• 85% of all TZST files start with the bytes P*M crucial for this file format. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. Most of these files are 34 bytes to 70 MB in size. The file type was developed only in the last few years. Files like these have the following tags: backup, sqldump, data, user, apache, domainmail, conf, statistics and logs.
• 10% of all TZST files use the same file format, which have the signature (µ/ý. The content consists of illegible binary data, which can only be read and interpreted by the associated programs. TZST files can be up to 100 MB in size, but are often around 120 KB - 70 MB. Files like these are sometimes connected to patches.

All other TZST files (5%) have no uniform format, the following 3 formats exist: RAR. These files are often connected to dist. You can get all the details of your TZST file by dragging it onto this page or by clicking the button "Choose your .tzst file to analyze" above.