B64 File Extension

B64 file icon

Base64 MIME-Encoded Format

What is a B64 file?

The B64 extension is related to Base64 MIME-Encoded Format and is classified in the Compressed Files category, which contains 820 files.

B64 files are compatible with various operating systems, including Windows. You can extract a B64 file using one of 3 programs, for example ALZip, ZipZag and IZArc.

MIME types

  • application/x-winzip
  • application/x-gzip
  • application/x-tar
  • application/x-zip-compressed
  • application/x-stuffit

Programs that support B64 files

How to open a B64 file?

The most common reason why a B64 file cannot be opened is the absence of required software. To fix this, select a compatible program from the list. Then visit the official developer website via the provided link, download the program, and install it on your system.

ALZip, ZipZag and IZArc are among the most widely used programs for handling B64 files. If you wish to install the latest release of ALZip, visit the official ESTsoft portal and download the edition that works on any operating system.

Following installation, B64 files should be automatically opened with ALZip.

Set ALZip as the default B64 application

Change the default app that opens a file on Mac

  1. Right-click or use Control + Left-click on the desired B64 file to open a menu where you can choose from multiple actions;
  2. Choose "Open in Application" and click "Other";
  3. Look at the bottom of the window, where you will see the "Enable" menu. "Recommended Programs" will be selected as the default option;
  4. Within this menu select "All Programs" and navigate to ALZip. Check the box next to "Always open in app" to make sure it’s the default option.

Change default programs in Windows

  1. Start the process by right-clicking on your B64 file and selecting "Open With". From there, click "Choose another app" to continue;
  2. From the options listed in the pop-up window, specifically choose ALZip as the application to handle your B64 file;
  3. Be sure to check the "Always use this app" checkbox and click "OK" to save your preference.

Troubleshooting guide for B64 file complications

When issues arise with B64 files, they can generally be fixed with small software tweaks. Use the troubleshooting tips below to help resolve them.

What are the possible solutions to recover a corrupt B64 file?

Start a recovery program, open the damaged B64 file and then select the "Repair" menu item to start the repair procedure. Wait for the recovery process to finish, allowing automatic repair of damaged compressed files.

How can I confirm if my B64 file has been damaged?

The signs of corrupted B64 compressed files can manifest as:

  • The file stops responding or freezes in ALZip or other programs;
  • The file does not respond or shows errors when opening it;
  • Unexplained B64 file size inflation;
  • The file operation is accompanied by the display of error messages;

What are the possible causes of ALZip crashing?

Lack of regular software updates can cause ALZip to crash. Make sure you have installed the latest updates for ESTsoft products.

Restarting your computer is a crucial troubleshooting measure that can alleviate numerous common problems. Therefore, it is advisable to restart your computer before modifying any settings related to the software.

Convert files to and from B64

If a B64 file is cumbersome, converting it to formats such as BIN or other supported types can make it easier to manage.

It is important to understand that converting a B64 file might limit certain functions, but this conversion is usually reversible.

Convert B64 to other file formats