Web Reference: numpy.save # numpy.save(file, arr, allow_pickle=True) [source] # Save an array to a binary file in NumPy .npy format. Parameters: filefile, str, or pathlib.Path File or filename to which the data is saved. If file is a file-object, then the filename is unchanged. In the end it really depends in your needs because you can also save it in a human-readable format (see Dump a NumPy array into a csv file) or even with other libraries if your files are extremely large (see best way to preserve numpy arrays on disk for an expanded discussion). Jul 15, 2025 · When working with data it's important to know how to save NumPy arrays to text files for storage, sharing and further analysis. There are different ways from manual file handling to using specialized NumPy functions. In this article, we will see how to save a NumPy array to a text file.
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