.BULK-004 File

The bulk-004 file extension is associated with the BulkZip, a data compression tool with own compression format, developed for Microsoft Windows operating system.

The bulk-004 file stores the fourth part of compressed multi-volume compressed archive 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.

In order to unpack the multi-volume BULK archive, you need to place ALL of the split parts in the same directory and start extraction of the first volume. The program will automatically use all of the parts to extract the content of the archive.

How to open:

The bulk-004 file is only one part of BulkZip split compressed archive. If you want to extract this file, you must have all parts of the BulkZip split compressed archive.Open the first part of BulkZip split compressed archive in BulkZip application and extract files from BulkZip split compressed archive.

How to convert:

The easiest way how to convert BULK-004 multi-volume BulkZip compressed archive is to decompress the multi-volume BulkZip compressed file archive with the use of compression tool and repack the content with another compression utility of your choice.