Developing Microsoft Excel Charts with Pivot Table, Arranging the date using Pivot Table, Shorting duplicates value by data, colour etc. Fillter the data as per requirements. Comparing data and merging in one sheet using lookup formula. Setting big file for printing. Brief summary of tools / formulas are available in Excel which I use daily basis are as under:- (1) Complex Formulas (2) Charts (3) Pivot Tables (4) Formatting, Conditional formatting (5) Sorting (6) Filter (7) Lookup formulas (8) Sumif formula (9) Etc