The default files created by C++ Builder

• Project1.bpr: Contains information about the project.
• Project1.cpp : Contains code for the execution of the project
• Project1.exe : The full-running program
• Project1.obj : An intermediate between code and executable
• Project1.tds : An intermediate between code and executable
• Unit1.cpp (VCL) : Contains YOUR code
• Unit1.dfm : Contains the Form of your project
• Unit1.h (VCL) : Header file of Unit1
• Unit1.obj : An intermediate between code and executable
• Files with an extension beginning with a tilde '~' are backup-files.

• For console applications: Unit1.h
• For Builder applications: All, except the .exe, .obj, .tds and backup files

bpr: Borland Project
cpp: C plus plus
dfm: Delphi form
exe: Executable file
h  : Header file
obj: Object file
tds: ?temporary debugging ?symbols