What is an FDD file?
The .FDD file extension has several different uses. The most common use is a Virtual Floppy Disk Image file. These files store an exact digital copy of a physical floppy disk. Software like the Anex86 PC-98 emulator uses this format. Another important format is the Parallels Desktop Floppy Disk Image File, which is used by Parallels Desktop for macOS hardware virtualization.
Because it is a generic extension, .FDD is also used for electronic form documents created by FormDocs software. Additionally, Autodesk Revit creates .FDD files as background collaboration cache files. Other uses include CAD drawing files from Fujitsu ICAD/SX and word processing documents for the WPCubed WPTools component.
How to open FDD files?
The correct software depends entirely on the exact file type. You can mount a Floppy Disk Image in virtual machine software like Parallels Desktop. If the file is an electronic form, you must open it with FormDocs. If it is a cache file, Autodesk Revit manages it automatically in the background.
Inspecting FDD files online
Because the .FDD extension has multiple possible meanings, you might not know which software you need. viewer.online/fdd can analyze .FDD files to identify the exact format and creator software. It allows you to inspect the file structure, extract readable text, and check whether an online preview is available.
Summary
viewer.online/fdd is useful for identifying, inspecting, and understanding .FDD files without installing software or dealing with compatibility problems. It helps you verify the true format of your file safely and easily.