.PKL File Extension

Pickled File

A PKL file stores serialized Python objects created with the pickle module. Pickling converts a Python object into a byte stream for writing to disk. Unpickling reverses this to deserialize the byte s...

General Information

Title PKL File Extension
Extension .pkl
Full Form Pickled File
File Type Serialized Data File
Developer Python Software Foundation
MIME Type application/octet-stream

File Function

Primary Function Store serialized data
Additional Functions Transfer data, Backup data
Features Binary format, Python-specific

File Characteristics

Quality Depends on data
Supports Layers N/A
Supports Transparency N/A
Editable Indirectly, via Python

Use Cases

Machine Learning Yes
Data Analysis Yes
Data Storage Yes

Security and Practices

Security Risks Code execution
Best Practices Data validation, Safe loading

Historical/Version Information

Initial Release Python 0.9.0 (1991)
Latest Version Python 3.9 (2020)

Associated Types

Similar Extensions .json, .csv, .xml

Software Compatibility

Software Usage Policy OS Compatibility
Python Free Windows, Mac, Linux
Anaconda Free Windows, Mac, Linux
Jupyter Notebook Free Web-based