Excel <> HTML Web page - How ?

[hkappleorange]

I wish to do something very simple but never get the answer how to do it:-

Requirement 1:
I want to create a web page with an input text box and a button. I want when
user key in value in text box on this web page and push the button, the data
sent to a cell in Excel file. Mission impossible ? I do not want Excel >
File > Save as Web.

Requirement 2:
Similar to Requirement 1 except the web have a slide bar. As user drag the
slide bar the value in an cell on Excel worksheet changes.

Help !!!

 

[Nigel]

To interact with webpage through the browser consider using Javascript.

 

[hkappleorange]

Thanks. What is the requirement to use Javascript ? I just want to link web
tex input box to a cell in Excel file ....