BCB and Delphi project file name extension list

Please refer to the table below.

Related article: Bcb/delphi related file name extension introduction

File	Product	Purpose
Defproj.opt	Delphi 1 only	Default Project options for the IDE
Delphi.dmt	Delphi 1 only	The file used to store menu templates
Delphi.dsk	Delphi 1 only	The default project Desktop file
Delphi.hdx	Delphi 1 and 2 only	The Multihelp index file
Defproj.dof	Delphi 2 and later	Default Project options for the IDE
Delphi32.dmt	Delphi 2 and later	The file used to store menu templates
Delphi32.dsk	Delphi 2 and later	The default project Desktop file
Delphi32.dci	Delphi 3 and later	The text file used to store Code Templates
Defproj.cfg	Delphi 4 and later	Default Project Options for the command-line compiler
Oh.exe	Delphi/c++builder 4 and later	The Openhelp executable
Oh.ini	Delphi/c++builder 4 and later	The Openhelp settings file
Bcb.dmt	C++builder 1 and later	The file used to store menu templates
Bcb.dsk	C++builder 1 and later	The default project Desktop file
Default.bpr	C++builder 1 and later	Default Project file
Ilink32.dll	C++builder 1 and later	INCREMENTAL linker
Openhelp.exe	C++builder 3 Only	The Openhelp executable
Openhelp.ini	C++builder 3 Only	The Openhelp settings file
Bcb.dci	C++builder 3 and later	The text file used to store Code Templates
Bcb.bcf	C++builder 5 and later	Editor Formatting configuration file
Convrtrs.txt	C++builder 5 and later	XML Converter Configuration
Default.bmk	C++builder 5 and later	Default Application Makefile
Deflib.bmk	C++builder 5 and later	Default Library Makefile
Ibm-1252.cnv	C++builder 5 and later	XML Converter
Defproj.conf	Kylix 1 and later	Default Project Options for the command-line compiler
Defproj.kof	Kylix 1 and later	Default Project options for the IDE
Delphi.dct	Kylix 1 and later	The Component Templates file
Delphi.desk	Kylix 1 and later	The default project Desktop file
Delphi60dci	Kylix 1 and later	The text file used to store Code Templates
Delphi60dmt	Kylix 1 and later	The file used to store menu templates
Delphi60dro	Kylix 1 and later	The Object Repository settings
*.dst	Delphi/c++builder 5 and later, Kylix 1 and later	Global Desktop Files