What is an ADI file?
The .ADI file extension commonly represents an AOMEI Backupper Disk Backup File. The AOMEI software creates these files to store full copies of hard drives, partitions, or system states for disaster recovery. However, the .ADI extension is also heavily used for the Amateur Data Interchange Format. Ham radio operators use these files to log radio contacts and transfer data between different programs. Less commonly, .ADI can be an Active@ Disk Image, an Advantage Database Index, or an AutoCAD plotter file.
How to open ADI files?
Opening an .ADI file depends entirely on its actual format. You can use viewer.online/adi to analyze .ADI files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available. For a disk backup, you need the original software like AOMEI Backupper or Active@ Disk Image. For amateur radio logs, you can open the file with plain text editors or radio software like WSJT-X.
Best practices and troubleshooting
Do not invent certainty. Because .ADI has multiple possible meanings, we recommend using viewer.online/adi to identify the actual format of your specific file. Never rename the file extension to fix compatibility problems, as this can corrupt the file. Always keep backups of your .ADI archives on external drives to prevent data loss.
Software and tools
If you need to convert your amateur radio logs, we recommend file conversion to sensible target formats on convert.guru. You can convert radio logs to .CSV or .TXT for easier reading. If you need to restore an AOMEI backup, you must install the official restore tool.
Summary
viewer.online/adi is useful for identifying, inspecting, and understanding .ADI files without installing software or dealing with compatibility problems.