Extract text from Ephemeris data or save files (SE1)
To convert SE1 files to another format, you need Swiss Ephemeris or other Data software.
To convert other file formats to the "Ephemeris Data File" file type, you need software like Swiss Ephemeris or a similar tool.
The .SE1 file extension primarily identifies Swiss Ephemeris Data files maintained by Astrodienst AG. These are dense, proprietary binary files used by astrology and astronomy applications to calculate high-precision planetary and asteroid positions. Alternatively, a distinct subset of .SE1 files serves as save game data for the grand strategy video game Shadow Empire.
The main disadvantage of the .SE1 format is its closed architecture. As an astronomical data file, it is unreadable without the specific C-based Swiss Ephemeris API. Users cannot open these files in a text editor or standard database tool. As a game save, it is locked to the specific game engine, although it is secretly structured as a standard ZIP archive. Standard online converters fail to process .SE1 files because they rely on file extensions rather than analyzing the raw internal file headers.
Converting astronomical .SE1 files to TXT or CSV requires specialized software to query the database and export the results. However, you can convert the game save variant by simply extracting the underlying archive. Our engine inspects the file signature to reveal if it is a hidden ZIP archive or raw binary data, providing you with realistic extraction and conversion targets without needing complex coding skills.
Convert.Guru analyzes your SE1 file, detects the exact format, and lets you read the text inside.
Users also converted PDF, MPH, SAM and CXL files.
If you want to convert SE1 file to CSV, JSON, XML, YAML, YML, TOML, INI, CFG, CONF, DAT, DB or SQL, you can use Swiss Ephemeris or similar software from the "Astronomical 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 SE1, try Swiss Ephemeris or another comparable tool in the "Astronomical Data Storage" 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 SE1 converter.