DFSee partition data
File type: Various data file
A pd1 file contains partition data created or used by DFSee, a disk and partition utility.
The file belongs to DFSee and is not a general-purpose document or interchange format.
File type category:
Various data file
Date updated: October 14, 2026
DFSee, developed by Jan van Wijk, is a disk and partition utility for Microsoft MS-DOS that can examine and help recover partitions and filesystems. It also allows users to create data-recovery partitions and filesystems. The pd1 file extension identifies a DFSee partition data file.
A pd1 file stores partition-related information for use by DFSee. It is part of DFSee's own working data rather than a filesystem or partition itself.
Open the pd1 file with DFSee on Microsoft MS-DOS. Use DFSee to inspect or work with the partition data; it is not intended to be opened as ordinary text.
If DFSee does not recognize the file, it may have been created for a different DFSee operation or may no longer contain valid partition data. Work on a copy when the file is part of a recovery procedure.
The pd1 file is a DFSee-specific partition data file and has no useful general-purpose conversion format. It should normally be read or applied with DFSee rather than converted.
To obtain information in another form, use DFSee's available reporting or export functions after opening the file.
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