PICKLE file icon

PICKLE File Extension

Python Pickle Format

What is PICKLE file?

Files with .PICKLE extension store object serialized with Pickle module for Python versions 3.x. This extension replaced PKL extension used in Python 2.x. Pickle is a binary file used for storing and sharing Python objects. Pickle files can be loaded in Python code using Pickle module method.

Contents of Python Pickle files

Serialized objects in PICKLE files can be of any type. PICKLE files can be used to serialize database objects or store program state. Only PICKLE files from trusted sources should be used as such files can contain malicious software. Pickle object can be compressed.

How are Python PICKLE files created?

Serialization process is is called "pickling" and is done using dump() and dumps() methods. The first method is used for serializing object into file, while the second one for saving object into binary object. Deserialization, that is converting byte stream back to original object, is done using load() and loads() methods; this process is sometimes referred to as "unpickling".

Programs which support PICKLE file extension

Programs that can handle PICKLE files are as follows. Files with PICKLE extension, just like any other file formats, can be found on any operating system. The files in question may be transferred to other devices, be it mobile or stationary, yet not all systems may be capable of properly handling such files.

Programs that support PICKLE file

Windows Windows

Updated: 02/18/2024

How to open file with PICKLE extension?

Being unable to open files with PICKLE extension can be have various origins. On the bright side, the most encountered issues pertaining to Python Pickle Format files aren’t complex. In most cases they can be addressed swiftly and effectively without assistance from a specialist. The list below will guide you through the process of addressing the encountered problem.

Step 1. Install Python software

Install software to open PICKLE file Problems with opening and working with PICKLE files are most probably having to do with no proper software compatible with PICKLE files being present on your machine. The solution is straightforward, just download and install Python. The full list of programs grouped by operating systems can be found above. The safest method of downloading Python installed is by going to developer’s website (Python Software Foundation) and downloading the software using provided links.

Step 2. Check the version of Python and update if needed

Update software that support file extension PICKLEYou still cannot access PICKLE files although Python is installed on your system? Make sure that the software is up to date. It may also happen that software creators by updating their applications add compatibility with other, newer file formats. The reason that Python cannot handle files with PICKLE may be that the software is outdated. All of the file formats that were handled just fine by the previous versions of given program should be also possible to open using Python.

Step 3. Assign Python to PICKLE files

If the issue has not been solved in the previous step, you should associate PICKLE files with latest version of Python you have installed on your device. The method is quite simple and varies little across operating systems.

Associate software with PICKLE file on Windows

Selecting the first-choice application in Windows

  • Clicking the PICKLE with right mouse button will bring a menu from which you should select the Open with option
  • Click Choose another app and then select More apps option
  • Finally select Look for another app on this PC, point to the folder where Python is installed, check the Always use this app to open PICKLE files box and conform your selection by clicking OK button
Associate software with PICKLE file on Mac

Selecting the first-choice application in Mac OS

  • From the drop-down menu, accessed by clicking the file with PICKLE extension, select Information
  • Open the Open with section by clicking its name
  • Select the appropriate software and save your settings by clicking Change all
  • Finally, a This change will be applied to all files with PICKLE extension message should pop-up. Click Continue button in order to confirm your choice.

Step 4. Ensure that the PICKLE file is complete and free of errors

You closely followed the steps listed in points 1-3, but the problem is still present? You should check whether the file is a proper PICKLE file. Being unable to access the file can be related to various issues.

Check PICKLE file for viruses
1. Check the PICKLE file for viruses or malware

If the file is infected, the malware that resides in the PICKLE file hinders attempts to open it. It is advised to scan the system for viruses and malware as soon as possible or use an online antivirus scanner. If the PICKLE file is indeed infected follow the instructions below.

2. Check whether the file is corrupted or damaged

If the PICKLE file was sent to you by someone else, ask this person to resend the file to you. It is possible that the file has not been properly copied to a data storage and is incomplete and therefore cannot be opened. If the PICKLE file has been downloaded from the internet only partially, try to redownload it.

3. Verify whether your account has administrative rights

Sometimes in order to access files user need to have administrative privileges. Log in using an administrative account and see If this solves the problem.

4. Make sure that the system has sufficient resources to run Python

The operating systems may note enough free resources to run the application that support PICKLE files. Close all running programs and try opening the PICKLE file.

5. Verify that your operating system and drivers are up to date

Latest versions of programs and drivers may help you solve problems with Python Pickle Format files and ensure security of your device and operating system. It is possible that one of the available system or driver updates may solve the problems with PICKLE files affecting older versions of given software.

Do you want to help?

If you have additional information about the PICKLE file, we will be grateful if you share it with our users. To do this, use the form here and send us your information on PICKLE file.

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