Microsoft Excel 2010 Spreadsheet design

I have a 10 year old spreadsheet, I want to add some changes but don’t have time to do so myself.

separate but linked job, 6 year old spreadsheet the cash flow page I would like changed significantly to enable me to adjust the growth rates on tax free and taxable investments. Again I could do but haven’t the time (and I am sure an expert would do it better anyway!)

If I like what you do I may get you to re-write both sheets so they are easier for non xl geeks to input.

Am, happy to send spreadsheets to interested parties but it has been a lot of work from me over the years so would like to ensure confidentiality before I do so.

can do fixed or hourly price but need to know a firm estimate at outset.