Opening an ASJ File

The ASJ file type is primarily associated with Aldfaer.

ASJ	File extension: ASJ
	File type:	Aldfaer files

What is an ASJ file?

ASJ files mostly belong to Aldfaer. Genealogic database program. ASJ=Aldfaer SJabloon - sjabloon is dutch for template.

How to open ASJ files

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

Online ASJ Text Viewer

Choose your .asj file to analyze

or drag and drop it here

Online File Viewer

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What to Do When a .ASJ File Fails to Open

ASJ files can originate from different programs and aren't universally openable by standard applications.

Identify the Source: If received from a genealogist or family historian, it is likely an Aldfaer family tree database.
Check the Header: Open the file in a text editor or hex viewer to inspect the first bytes.
- Readable text or XML suggests a structured data file.
- A "PK" signature indicates a renamed ZIP archive.
- Random binary data implies a proprietary database format.
Use the Original Software: You often need the original program to open it properly. Try installing Aldfaer, or ask the sender what software they used.
Use this Webpage: Drag and drop your .ASJ file into our viewer to detect its format, extract readable metadata, and preview its contents.

Technical Data for ASJ File Extension

an asj Aldfaer file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with ASJ files

Associate the ASJ file extension with the correct application.
Update your software that should actually open Aldfaer files. Because only the current version supports the latest ASJ file format. Search, therefore, e.g. on the manufacturer website after an available Aldfaer update.
To make sure that your ASJ file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .ASJ file online - secure, fast, and no downloads needed.