Click the "Select File" button above, and choose your NPY file.
You’ll see a preview, if available.
Click the "Convert file to..." button to extract text information.
Convert NPY to another file type
To convert NPY arrays to another format, you need NumPy or other Data software.
Convert a file to NPY
To convert other file formats to the "Python Array File" file type, you need software like NumPy or a similar tool.
About NPY files
The .NPY file is a binary data file created by the NumPy library for Python. It stores a single multidimensional array, preserving its exact shape, memory layout, and data type. Developers and data scientists rely on this format to save complex computational data. However, users need to convert these files because they are completely unreadable outside of a Python programming environment. You cannot open a .NPY file in spreadsheet software, text editors, or standard web browsers. It is a closed, proprietary binary format designed for high-performance computing, not general data sharing. When sharing data with non-programmers, you must convert it. The best conversion targets are standard tabular formats. Convert to CSV for viewing in spreadsheets, or JSON for web applications. Note that converting a high-dimensional .NPY array (e.g., 3D or 4D) to a 2D CSV structure often requires flattening the data, which loses the original dimensional context. This file format is difficult to open or convert online because standard converters lack the Python backend required to parse the NumPy header and binary blob correctly. Often, only the original Python environment can properly read or export the data. Our platform can inspect the file and show text or internal content. If our analysis detects a supported underlying or embedded format, viewing or conversion to CSV or TXT may still be possible.
Convert.Guru analyzes your NPY file, detects the exact format, and lets you read the text inside.
If you want to convert NPY file to CSV, PNG, TXT, JPG, MAT, IMAGE, NPZ, JSON, BIN, XML, YAML or YML, you can use NumPy or similar software from the "Numerical Array 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 NPY, try NumPy or another comparable tool in the "Numerical Array Data Storage" category.
The NPY Converter Story
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 NPY converter.