I have good experience of working in Microsoft excel and can help you / your company with all sorts of easy or complex excel related issues. I can even help in P&L or cash flow forecasting and building project finance or corporate finance related models used to calculate IRR and NPV. Even my husband is a excel champ who can assist me in complex matters. Most importantly, I will get my work reviewed by my husband before I send the output over to you. So you have the advantage of two eyes already looking at the requirements and then your third eye. This way chances of error, if any, would nullify.