Click the "Select File" button above, and choose your OR4 file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert OR4 to another file type
To convert your OR4 file to another format, you need Lotus Organizer or other Database software.
Convert a file to OR4
To convert other file formats to the "PIM Data File" file type, you need software like Lotus Organizer or a similar tool.
About OR4 files
A .OR4 file is a personal information management (PIM) database created by IBM Lotus Organizer 4.0 (or the '97 GS' edition). These files act as a digital filofax, storing contacts, calendar appointments, to-do lists, and notes in a proprietary binary format.
A key problem with .OR4 files is that the software required to open them, Lotus Organizer, has been discontinued for decades. Modern operating systems like Windows 11 do not natively support this legacy format, leaving important historical data locked inside inaccessible files. Additionally, these files cannot be directly imported into modern tools like Microsoft Outlook or Google Calendar without conversion.
For data recovery, the best approach is to convert .OR4 to open standards. Convert to CSV to edit contact lists in spreadsheets like Excel. Use vCard (.VCF) or iCalendar (.ICS) to import contacts and schedules into modern smartphones and mail clients. For archiving the visual layout of the diary, convert to PDF/A.
Convert.Guru analyzes your OR4 file, detects the exact format, and lets you read the text inside.
If you want to convert OR4 file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Lotus Organizer or similar software from the "Personal Information Manager Database" 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 OR4, try Lotus Organizer or another comparable tool in the "Personal Information Manager Database" category.
The OR4 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 OR4 converter.