Extract text from Erwin diagrams (ER1)
To convert ER1 diagrams to another format, you need Erwin Data Modeler or other Database software.
To convert other file formats to the "Entity Relationship Diagram" file type, you need software like Erwin Data Modeler or a similar tool.
An .er1 file is an Entity Relationship Diagram (ERD) created by Erwin Data Modeler. Data architects use these files to map out complex database structures, defining tables, columns, data types, and the relationships between them.
The .er1 format is strictly proprietary. Its primary disadvantage is accessibility: opening or editing an .er1 file requires an expensive commercial license for Erwin Data Modeler. You cannot view these diagrams natively in web browsers, standard image viewers, or text editors. This makes sharing database models with non-technical stakeholders, project managers, or developers without the software a significant bottleneck.
To share these models effectively, the .er1 file must be exported to standard formats like PDF, PNG, or JPG. If the goal is database implementation, the file is typically converted into SQL or Data Definition Language (DDL) scripts.
Because .er1 is a closed, undocumented format, standard online converters fail to process it. Often, only the original Erwin software can properly read, render, or export the relational data. If our analysis detects a supported underlying or embedded format, viewing or partial conversion may still be possible.
Convert.Guru analyzes your ER1 file, detects the exact format, and lets you read the text inside.
Users also converted ERWIN, ERX and DAMX files.
If you want to convert ER1 file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Erwin Data Modeler or similar software from the "Database Relationship Modeling" 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 ER1, try Erwin Data Modeler or another comparable tool in the "Database Relationship Modeling" category.
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 ER1 converter.