File Extension D1

.D1 File

File extension: D1
File type: Database File


Notes about the D1 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 D1 file type is primarily associated with 'Progress' by Progress Software Corporation. Should also be an associated .B1 file.

Detailed information for file extension D1:


Primary association: Progress
Company: Progress Software Corporation

Other applications associated with file type D1:

  • Unknown Apple II File ((found on Golden Orchard Apple II CD Rom))



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.
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