Retrieve Stock Market Data fromYahoo Finance using MS Excel 2016

DESIGN NOTES - Retrieving stock market historical data from Yahoo Finance Compatible with Microsoft Excel 2016. Data comes from Yahoo Finance. Use a command button to initiate the program. Must run for as few as 2 trading days, maximum up to 1,000 trading days. Maintain header row A of "Date/Open/High/Low/Close/Volume", in this order. This will be a data file to be automatically imported to an Excel spreadsheet, so format matters. See attached file. Read input fields of "Ticker, Oldest Date, Newest Date". "Ticker" should not be case sensitive. Error check & message: "Ticker not found" Error check & message: "Invalid date order" (Oldest date & newest date reversed) Error check & message: "Invalid end date" (Newest Date must be today or older) Clear all previous output, potentially 1,000 days. Write new output. Oldest at the top, newest at the bottom. Format "Date": m/d/yy, Arial 8 Format "Open/High/Low/Close": commas, 2 decimal places, Arial 8 Format "Volume": commas, no decimal, Arial 8 Audible alert and "OK" button up completion. OK to turn off screen updates while running. I want to learn from the application and possibly improve. Include an explaination how I get into the code to make changes. If it is locked, then provide the passcode. In exchange for final payment I receive unconditional rights to possess, modify and use for any purpose. Propose milestones of 1/3 acceptance, 1/3 first submittal, 1/3 fully operational/close out.