Opening a ZCF File

The ZCF file type is primarily associated with Truecaller.

ZCF	File extension: ZCF
	File type:	backup file

What is a ZCF file?

ZCF files mostly belong to Truecaller. ZCF files store contact information primarily as an XML backup from Nokia Asha phones.
This file format embeds contact details in an XML structure, which means the data is stored as plain text with tags defining names, phone numbers, and other contact fields.
Key points sourced by FilExt.com:

The file contains data in a standard XML format.

It is used to back up contacts, ensuring data can be restored or transferred.

The Truecaller app is linked with these files for contact verification and management.

FilExt.com tip: To view or edit a ZCF file, you may use an XML viewer or a plain text editor. For more details on how your contacts backup may interact with modern apps, see Truecaller.

How to open ZCF files

You need a suitable software like Truecaller to open a ZCF 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 ZCF file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a ZCF file directly in the browser:. Just drag the file onto this browser window and drop it.

Online ZCF Text Viewer

Choose your .zcf file to analyze

or drag and drop it here

Online File Viewer

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ZCF format details:

If you can determine the file format, the associated program can also be determined. A file format is determined by the file extension and signature, so JPEG images have the extension .jpg and the first bytes in the file are ÿØÿ. However, different programs can use the same file extension, and file extensions can be assigned incorrectly. Exact knowledge of the format is therefore important in order to solve problems occurring in files. Our evaluation of the ZCF files is as follows:

The ZCF file extension is not widely used. Such a file mainly uses a special format. The two most common formats are as follows:

• 85% of all ZCF files internally utilize the XML file format. The Extensible Markup Language (XML) is a simple text-based format for representing structured information: documents, webpages, data, configuration, books, transactions, invoices, and much more. XML defines a set of rules for encoding documents in a format that is both human-readable and machine-readable. These files are plain text, which means they can be viewed with any text editor such as Windows Editor, Nano for Linux, and TextEdit for macOS. The files are 12 KB to 190 KB in size, with a median of 61 KB. This file type is based on cutting-edge technology. The following keywords are characteristic: item, data2, phone_v2 data1, <?xml version='1.0', ?><dews version="2.0", ANDROID, encoding='UTF-8' standalone='yes', name data1, given, <?xml version="1.0" encoding="utf-8"?> and mobile. Such files sometimes refer to contacts, and have often person-related content.
• 7% of all ZCF files are based on the zip format, the ZCF file contains a number of compressed files. A ZCF file can contain up to 40 files (mostly 1 - 13). If you want to see the included files and images, simply rename the file extension to .zip and double-click it. The files are on average 72 KB in size and range from 13 KB to 480 KB. The keywords importstr are typical for these files.

The remaining 8% of all ZCF files are different files with different signatures. Often described as country or config. Just click the "Choose your .zcf file to analyze" button on this page to find out what your ZCF file is.