Write to file on FTP?

[Steviep]

Hi all,

I have a GUI which contains radio buttons, input fields and a "Submit" button. When a user makes their selections and clicks on "Submit", I would like their selections to be written to a file on a FTP server (ideally something which can be opened in Excel later on for review). The goal is to collect data from many users, (this is a "Feedback" form). The more people who complete the form, the bigger the file would grow. Ideally i'd like to avoid uploading 1 .txt file per submission as it would be hard to analyse the data later.

Any suggestions?

Many thanks!

[Jos]

This is not going to work as far as I know. You need the file locally to be able to write to it after which you can upload it. 
Functionality like this require a Web page with a form which makes it pretty easy to append  the inputted data to a local file on the webserver.

Jos 

[Subz]

Have you looked at Google Forms?  Its free and you can download the responses to a spreadsheet.  Otherwise as Jos mentioned you would need to create a web form with a database on the back-end which will allow you to export the data, to spreadsheet etc..