Extract text from Wii audio and diagram files (ER)
To convert ER audio and diagrams to another format, you need ERDPlus or other Game software.
To convert other file formats to the "Audio Stream / Diagram" file type, you need software like ERDPlus or a similar tool.
The .ER file extension represents multiple distinct and highly fragmented formats. Most commonly, it functions as a proprietary audio stream or level data file for Nintendo Wii games, such as New Super Mario Bros. Alternatively, it is widely utilized as an Entity-Relationship (ER) Diagram project file by various database modeling applications, including ERDPlus, ERMaster, Erwiz, and ER-Designer.
These files present significant compatibility challenges. The Nintendo Wii audio variants are closed, proprietary formats engineered exclusively for console hardware and cannot be opened by standard media players. Meanwhile, ER diagram .ER files are notoriously application-specific. For example, an .ER file created in ERDPlus (which is JSON-based) cannot simply be opened in ERMaster. Furthermore, Eurocommand ENAio software utilizes the .ER extension for command and control system reports, which are heavily locked down as encrypted ZIP archives.
Converting a .ER file depends on identifying its true origin. Game audio files typically require specialized community modding tools to extract into WAV or MP3. ER diagrams must be opened in their original software to be exported as standard PNG, PDF, or SQL formats. Standard online converters fail to process .ER files because they cannot decipher the proprietary headers or handle the encrypted nature of the Eurocommand variants. Even though these formats are closed and fragmented, our analysis can often detect the underlying structure (such as embedded JSON or ZIP archives) and display the raw text data, allowing you to salvage your work when the original software is unavailable.
Convert.Guru analyzes your ER file, detects the exact format, and lets you read the text inside.
Users also converted ERD, TEST, TOC and OCS files.
If you want to convert ER file to SHP, KML, KMZ, GPX, GEOJSON, TOPOJSON, TIF, TIFF, ECW, SID, IMG or DEM, you can use ERDPlus or similar software from the "Game Audio & ER Diagrams" category. In the File menu, look for Save As… or Export….
To convert LAZ, KMZ, DTM, CSV, DEM, PRJ, LAS, GPX, DSM, SHP, DBF or KML files to ER, try ERDPlus or another comparable tool in the "Game Audio & ER Diagrams" 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 ER converter.