Excel to Autocad using Autolisp

To draw in Autocad automatically reading data from the Excel file inserted in Autocad drawing using Autolisp . For eg. names of the objects given in Excel file as A,B,C,D etc. These objects should be searched in the Autocad drawing automatically and joined with lines or Arcs using Autolisp. The coder should be proficient in Autolisp coding to read the data from the Excel file inserted in Autocad drawing and join the objects shown in the drawing accordingly. No manual drawing but using only Autolisp.