.QED File Extension
File TypeQEMU Enhanced Disk Image
What is a QED file?
A QED file is a disk image file saved in the QEMU Enhanced Disk Image (QED) format, which is a format used by QEMU virtualization software. It stores the hard drive contents of a QEMU virtual machine.
The QED format is designed to improve upon the performance of the QEMU Copy On Write Version 2 (.QCOW2) format, which replaced the QEMU Copy On Write (.QCOW) format. However, the development of the format ceased and QEMU reverted back to the QCOW2 format.