PART File - What is a .part file and how do I open it? (2024)

2 file types use the .part file extension.

  • 1.Partially Downloaded File
  • 2.PartDesigner Part

Partially Downloaded File

DeveloperN/A
Popularity

4.1 | 1569Votes

What is a PART file?

A PART file is a partially downloaded file from the Internet used for downloads that are in progress or have been stopped. Some PART files can be resumed at a later time using the same program that started the download. PART files are typically used by Mozilla Firefox and several file transfer programs, such as Go!Zilla, eMule, and the discontinued eDonkey program.

More Information

When downloading a file with Firefox, the web browser creates a PART file in the "Downloads" folder on your computer. You may see the PART file if the file is currently downloading or if the download was interrupted before completion. A download interruption could be due to a lost Internet connection, the Firefox browser or computer crashing, or to you pausing the download.

As Firefox downloads the file, the program creates a PART file to store the data being downloaded. Firefox replaces the name of the file with a string of characters and appends the .part extension to the extension of the file. For example, the file example.mov would have the name ZT5KR1EL.mov.part when it is being downloaded. Once the download is complete, Firefox removes the .part extension and the file is ready to be used.

You may also encounter PART files when using Skype on a Mac. If a PART file keeps reappearing while using the program, move the file to the trash and make sure it's the only file in the trash. Then, right-click the "Trash" icon, hold the "Command" key, select Secure Empty Trash, and verify that the trash is empty. Now, when you reopen Skype, the PART file should no longer reappear.

How to open a PART file

You may be able to open interrupted Firefox download files even though they are incomplete. Simply delete the .part extension then attempt to open it with the appropriate program. Several audio and video file types, including .MP4, can still be played by a media player if they are not yet fully downloaded. However, these incomplete files will only contain portions of the file.

If you are unable to open the file, go to the "Downloads" section in Firefox, select "Show All Downloads," and click the "Reload" arrow icon next to the incomplete file to resume the download. If this option is unavailable for your download, you can delete the PART file and download the file again. If you cannot resume the download, delete the PART file and re-download the file again.

Open over 400 file formats with File Viewer Plus.Free Download

Programs that open PART files

Mac

Mozilla Firefox

Free

Jdownloader

Free

Microsoft Skype

Free

Linux

Mozilla Firefox

Free

Jdownloader

Free

Free

Microsoft Skype

Free

PartDesigner Part

DeveloperThe LEGO Group
Popularity

4.3 | 6Votes

A PART file may also be a custom LEGO part created in LEGO PartDesigner. It contains plain text data that specifies what LEGO bricks (and other elements) the part includes. LEGO enthusiasts can import the parts that PART files contain into LEGO BrickLink building projects.

More Information

LEGO PartDesigner is a multiplatform app that LEGO enthusiasts use to design and decorate custom LEGO parts. For example, a PartDesigner user could create a custom column and sticker that column with an imported .PNG decal.

Each part created in PartDesigner is saved as a PART file. Typically, PART files are comprised of multiple LEGO bricks and other elements. These elements' type, size, geometry, and positions are specified as plain text data in the PART file.

After a user finishes editing a PART file, they can export the part it contains to LEGO BrickLink, for inclusion in a BrickLink model (.IO file). They can also share the part online, by submitting it to the online BrickLink Studio part library.

How to open a PART file

You can open a PART file in LEGO PartDesigner (Windows, Mac):

  1. Select File → Open... from PartDesigner's menu bar.
  2. Navigate to and open your PART file.

How to Export a PART File to LEGO BrickLink Studio

To export a PART file from PartDesigner to LEGO BrickLink Studio:

  1. Open the file in PartDesigner.
  2. Select File → Export As → Export to Studio....
  3. When the Export to Studio window appears, select Export.

The part your PART file contains will now be available in BrickLink Studio's Custom Parts Palette.

Programs that open PART files

Verified by FileInfo.com

The FileInfo.com team has independently researched all file formats and software programs listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

If you would like to suggest any additions or updates to this page, please let us know.

‹.PARQUET|.PART00000›

PAGE CONTENTS

PART File - What is a .part file and how do I open it? (2024)

FAQs

What is a .part file? ›

The Part file format is a file created as a result of a partial download i.e. where the download hasn't finished completely. It's created so that the file-sharing program can store incoming data. It's possible to restart the download at a later time using the same program which initially sent the request.

How can I open a part file? ›

If you cannot open your PART file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a PART file directly in the browser: Just drag the file onto this browser window and drop it.

How to unzip a zip part file? ›

How to extract split '. zip' files
  1. Make sure that all the split zip files are in the same folder.
  2. Open WinRAR.
  3. Click on the “File” menu and select “Open”.
  4. In the “Open” dialog box, select the first split zip file.
  5. Hold down the Shift key and select the rest of the split zip files.
  6. Click on the “Open” button.

How do I convert a part file to a step file in SolidWorks? ›

You can set the export options when you export SOLIDWORKS part or assembly documents as STEP files. To set the STEP export options: Click File > Save As. Select a STEP file type for Save as type, then click Options.

How do I extract and open a file? ›

Right-click the file you want to zip, and then select Send to > Compressed (zipped) folder. Open File Explorer and find the compressed folder. To unzip the entire folder, right-click to select Extract All, and then follow the instructions. You can also select Extract All from the command ribbon.

What is the easiest way to unzip a zip file? ›

To unzip a single file or folder, open the zipped folder, then drag the file or folder from the zipped folder to a new location. To unzip all the contents of the zipped folder, press and hold (or right-click) the folder, select Extract All..., and then follow the instructions.

Why can't I extract a zip file? ›

If you lack the necessary permissions to access a specific directory on Windows, you might have trouble extracting ZIP files to that directory. To get around this, extract your ZIP file to a different directory. Pick a location with the appropriate permissions and see if the extraction completes successfully.

What is part file and how do you open? ›

part file is a partially downloaded file created by web browsers or download managers when a download is in progress or has been interrupted. These files serve as placeholders for the complete download and allow the download to be resumed from where it left off if the process is interrupted12.

How do I open a file easily? ›

Double-click the file to open it.

This opens the file in its default app. If you want to select a specific app to open the file with, right-click the file, select Open With, and then choose an app. Check out https://www.openwith.org to learn more about finding the right app to open a file.

How to open .stp file? ›

Opening an STP file requires 3D modeling software that supports the STEP file format or an STP viewer. Some popular software programs that can open an STP file are: Autodesk Fusion 360. Dassault Systemes CATIA.

What is a part file in CAD? ›

A part is an information object with an identification number, representing a physical component or assembly in a manufactured product. Although a part can exist with or without a document, it is typically related to many document types, including CAD files.

What is part file in office? ›

5.12 Part File –– A part file usually consists of a note and correspondence in order to explain a particular point. It is only used when the main file on a subject is under submission to a higher authority and a Fresh Receipt is required to be dealt without waiting for return of the main file in view of its urgency.

What is an MP4 part file? ›

MP4 is a popular video format used to share, download, and stream video content. In addition to video, the format can store audio, images, and also subtitles. It is a container format, meaning it can store various types of audio and video, as long as they are encoded in a codec supported by the MP4 format.

What is a jpg part file? ›

A file with a PART file extension name is basically a partial download, a small piece of a larger download. There are many different programs that use a PART file to handle downloads, especially when they are unusually large in size.

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