Home : File Types : QCOW2 File

.QCOW2 File Extension

File TypeQEMU Copy On Write Version 2 Disk Image

4.0 (70 Votes)
CategoryDisk Image Files

What is a QCOW2 file?

Disk image file saved in the second version of the QEMU Copy On Write (QCOW2) format, a format used by QEMU virtualization software; stores the hard drive contents of a virtual machine; similar to the .QCOW extension which is saved in the QCOW format; features a different strategy for storing multiple snapshots of the virtual machine.

More Information

QEMU’s disk allocation strategy allows for smaller file sizes because it delays allocation of storage until the disk space is needed. This differs from other policies that allocate fixed amounts of space, in which case some of the empty space may go unused.

NOTE: The QCOW2 format replaced the QCOW format and, subsequently, the QCOW extension. However, QEMU is still compatible with disk image files saved in the original QCOW format.

Open over 400 file formats with File Viewer Plus.

Programs that open QCOW2 files

Updated 3/14/2014

About QCOW2 Files

Our goal is to help you understand what a file with a *.qcow2 suffix is and how to open it.

The QEMU Copy On Write Version 2 Disk Image file type, file format description, and Windows and Linux programs listed on this page have been individually researched and verified by the FileInfo team. We strive for 100% accuracy and only publish information about file formats that we have tested and validated.

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