Extract text from OP files
To convert your OP file to another format, you need Openplanet or other Data software.
To convert other file formats to the "Scientific Data & Game Plugins" file type, you need software like Openplanet or a similar tool.
The .OP file extension is primarily associated with two very different ecosystems: scientific data and gaming. The most common use (approx. 43%) is for NOAA NCEI Global Surface Summary of the Day (GSOD) weather data. These are plain text files containing daily weather summaries from stations worldwide. While valuable for climate research, the raw format is often fixed-width text that is difficult to analyze without processing. Users frequently face friction trying to open these directly in spreadsheet software like Microsoft Excel or Google Sheets, as the columns may not align automatically. Converting these .OP files to CSV or XLSX is the standard workflow to make the data usable for graphing and analysis.
Alternatively, a .OP file may be a plugin package for Openplanet, a toolkit used with the racing game Trackmania. In this context, the file is essentially a renamed ZIP archive containing scripts and assets. The main constraint here is that operating systems do not natively treat .OP files as folders, making it hard to inspect the code or assets inside without renaming the extension or using an archiver tool. For these files, identifying the format and converting (or renaming) to ZIP allows users to extract contents. Less common uses include proprietary operation sheets for GibbsCAM or legacy documents from Optio Print.
Convert.Guru analyzes your OP file, detects the exact format, and lets you read the text inside.
Users also converted CMI, BAI and FMA files.
If you want to convert OP file to TMP, TEMP, CACHE, LOG, BAK, OLD, NEW, PART, DOWNLOAD, CRDOWNLOAD, LOCK or PID, you can use Openplanet or similar software from the "Scientific Weather Data" category. In the File menu, look for Save As… or Export….
To convert DEVICE, CACHE, SOCK, SYMLINK, PID, MOUNT, FIFO, LOG, PIPE, TMP, JUNCTION or TEMP files to OP, try Openplanet or another comparable tool in the "Scientific Weather 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 OP converter.