Use the press button in MFC to select the file dialog box, select a specified file, and display its address in the specified edit box

Among them, we select the file suffix named. xlsx, which is selected in all files in read-only and write-only mode. XLSL Documentation

CFileDialog Dlg (True, _t (". xlsx"), NULL, ofn_hidereadonly| Ofn_overwriteprompt, _t ("All Files (*.xlsx) |*.xlsx| |"), AfxGetMainWnd ());
if (IDOK = = dlg. DoModal ())
{
CString FilePath = dlg. GetPathName ();//Get the path to the selected document and save it in the filepath variable
M_selfile = Filepath;//m_selfile is a variable bound to the edit box to display the path
UpdateData (FALSE);//The value of the variable bound to the edit box is passed to the edit box and displayed to the edit box
}

Use the press button in MFC to select the file dialog box, select a specified file, and display its address in the specified edit box