Notes about the XDD file extension:
Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.
The XDD file type is primarily associated with 'xfit'. Xfit is a map-fitting and molecular modeling program to display or manipulate models and fit data to electron density. xfit accepts .PDB files, phase files (in X-Plor, TNT, or CIF (SHELX List 6) format; .FCF is accepted as equivalent to .PHS), map files, .VU (vector or line) file, viewpoint (.VP) files, script (.SCRIPT) files, ridgelines (.BONES) files, and sequence (.SEQ) files.
Detailed information for file extension XDD:
Primary association: xfitIdentifying characters
Hex: 2F 2A 0D 0A 53 61 6D 70 6C 65 49 64 65 6E 74 20 , ASCII: /*..SampleIdent.
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database
Important: Invalid file associations could be the result of underlying issues within your Windows PC. It is highly recommended that you scan your PC for invalid registry entries, unused processes and other slowdown issues.