Extract text from OEM files
To convert your OEM file to another format, you need GMAT or other Data software.
To convert other file formats to the "Space Flight Dynamics" file type, you need software like GMAT or a similar tool.
The .OEM filename extension creates immediate confusion because it serves two vastly different masters: the aerospace industry and legacy Windows deployment.
Most commonly (approx. 20%), this file is an Orbit Ephemeris Message, a standardized text format defined by the CCSDS (Consultative Committee for Space Data Systems). These files contain precise 'state vectors' - snapshots of a satellite's position (X, Y, Z) and velocity (Vx, Vy, Vz) at specific times. They are generated by flight dynamics software like GMAT (General Mission Analysis Tool) or Ansys STK.
The primary friction users face is that .OEM files are rigid, raw data containers. They are not 'documents' intended for casual viewing. While they are technically plain text, they lack a default application association in Windows or macOS. Users often need to convert them to CSV to plot trajectory data in Microsoft Excel or MATLAB, or convert them to TLE (Two-Line Element) format for compatibility with general tracking software.
Alternatively, in an IT context (approx. 12%), an .OEM file is a Windows Text-Mode Setup Script. Often found in a $OEM$ distribution folder on legacy installation media (like Windows XP or Server 2003), these scripts function like INI or INF files. They instruct the installer on how to handle third-party drivers or pre-installation tasks. These files are proprietary relics; the practical move is to convert or rename them to TXT to view their contents without risking accidental execution.
Convert.Guru analyzes your OEM file, detects the exact format, and lets you read the text inside.
Users also converted EOM, OEMBED, TXT, DOC, PRX, ETL, CONTACT and TLE files.
If you want to convert OEM file to TLE, INI, CFG, CONF, CONFIG, JSON, XML, YAML, YML, TOML, ENV or PROPERTIES, you can use GMAT or similar software from the "Space Flight Dynamics Data" category. In the File menu, look for Save As… or Export….
To convert ZSHRC, CONF, RCFILE, GITCONFIG, RC, PLIST, BASHRC, CONFIG, PROFILE, INI, PREFS or CFG files to OEM, try GMAT or another comparable tool in the "Space Flight Dynamics Data" 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 OEM converter.