Users often need to convert .ATW files because the format is strictly proprietary. You cannot open these files on standard mobile devices, modern web browsers, or alternative calendar apps. Without an active license for AnyTime Organizer, your personal data is effectively locked inside the file. Sharing your schedule with colleagues who use standard tools like Google Calendar or Microsoft Outlook is impossible without conversion.
The best target formats for this data are CSV for contacts and events, or PDF for static printable schedules. However, because .ATW is a closed format, standard online converters usually fail to process it. Often, only the original software can properly read or export the structured data.
Just drag and drop your file to identify the format, view it, and convert it when possible using convert.guru. Because it relies on a Microsoft Compound structure, our analysis can often inspect the file and extract embedded text, giving you a pragmatic workaround to view your locked information.
Convert.Guru analyzes your ATW file, detects the exact format, and lets you read the text inside.
If you want to convert ATW file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use AnyTime Organizer or similar software from the "Personal Organizer Data Storage" category. In the File menu, look for Save As… or Export….
To convert DBF, XML, SQLITE, XLSX, SQL, TSV, ACCDB, YAML, MDB, CSV, ODS or JSON files to ATW, try AnyTime Organizer or another comparable tool in the "Personal Organizer Data Storage" category.
The ATW Converter Story
The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our ATW converter.