My experience in Excel I have more than 25 years of experience. The amount of work I have done with Excel is enormous. As manager in Unilever Ceylon Ltd I had to exchange statistic between various personnel in countries like, India,Pakistan,Bangladesh, UK,Netherlander etc. The info I sent them were accurate and update. These data consist of equations of various types. Advance Excel knowledge was needed to the work I was involved with. Number of Excel sheets were used to process data. Sometimes I had to convert Excel to PDF format and sometimes excel was used for presentations. Knowledge on excel help me to understand MySQL data bases. All in all Excel has helped me a lot.