What is a CONTACT file?
A .CONTACT file is a data file that stores personal and business address book information. Usually, this is a Windows Contact File developed by Microsoft. These files store data like names, phone numbers, email addresses, and physical addresses. They use the standard XML format.
Another type of .CONTACT file is a phone contact list backup created by the Truecaller mobile application. These files use the JSON format.
How to open CONTACT files?
On a Windows computer, you can open a Windows Contact File by double-clicking it. The operating system includes a built-in contact viewer. Because these files use plain text formats like XML and JSON, you can also open them with any standard text editor. Tools like Notepad++ or Visual Studio Code will show the raw code and data.
Managing and converting files
You might need to move your contacts to another program, like Microsoft Outlook or Google Contacts. To do this, you must convert the .CONTACT file. The standard Windows utility can export your contacts into standard .VCF (vCard) or .CSV files. These standard formats work with almost all modern email and address book software.
Summary
viewer.online/contact analyzes .CONTACT files to identify their exact format and creator software, shows which programs can open the file, and usually previews it. Because .CONTACT files use the known XML format, viewer.online/contact can safely open and display them online, eliminating compatibility problems.