354457 SharePyx-new

I have posted this project before, but it seems I was unable to make myself clear to what exactly I wanted. I'm trying again. Two things involved: 1.) An existing web form on an existing website. 2.) An existing excel spreadsheet, containing some data. What I need is this: An .php program to read the “User Name” field of the web form and write it's contents into the excel spreadsheet cells A2 and N5 respectively. The program must also capture the current date, add 12 months to it, and write the new date into cells IQ1 and IQ2 respectively. The last step will be to save the excel spreadsheet, not overwriting the original file. The purpose of this is to personalise each excel file before download.