Project - Data Handling and Interpolation

FIRST OF ALL I DOWNLOADED VI.XLSX FILE AND THEN USED 'XLSREAD' TO IMPORT THE FILE ON COMMAND WINDOW.

THEN SEPERATED THE DATA IN FORM OF V AND I AS INDIVIDUAL.

THEN INSERTED THE RANGE GIVEN IN THE QUESTION.

AND AFTERTHAT USED 'INTERP1' FOR INTERPOLATING THE DATA SET.

AND USED 'SPLINE' TO SMOOTH NOISY DATA.

THEN PLOTTED V AND I IN GRAPH OR FIGURE WITH SPECIFICATION.

THEN USED 'GRID ON' TO TURN ON GRIDS IN THE FIGURE.

AND GIVEN TITLE AND LABEL INTO GRAPH USING 'TITLE' AND 'LABEL' COMMAND RESPECTIVELY.

AND THEN DERIVED THE MISSING VALUES OF V AND I UNDER THE NAME VV AND II.

AND THEN JOINT THEM AS THE NAME OF 'Z'.

IN LAST USING 'W' WRITE FUNCTION CREATED THE DESIRED FILE IN '.TXT' FORM AND SAVED THE PROGRAMME AND SUBMITTED THE OUTPUT TEXT FILE IN THIS ANSWER AND THE SAVED PROGRAMME AS MATLAB PROJECT.MAT FORM.