File Extension Library


.BULK File Extension

  • Category: Archive and compressed Files

What are .BULK files and how to open them?

Can't open .BULK file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .BULK file.

What is a .BULK file extension?

.BULK file extension has been classified as Archive and compressed Files.

.BULK is BulkZip compressed archive

The bulk file extension is related to the BulkZip, a data compression tool with own compression format, developed for Microsoft Windows operating system.

The bulk file stores compressed data with BulkZip software.

BULK is an advanced format that using LZMA2, PPMd and DEFLATE, the format tries to aim at high compression ratios and fast speeds.


How to open:

Use BulkZip to open and extract data from *.bulk compressed archive.

How to convert:

The easiest way how to convert BULK archive is to decompress the BULK archive with the use of compression tool and repack the content with another compression utility of your choice.

How to fix problems with .BULK files

  1. You need to update the application that you normally use to open .BULK files. Only the latest version of the software supports the current .BULK file format
  2. You need to check the .BULK file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)