way too many assumptions and alternate technologies to even begin to offer much more than the basics.
1. you would need a web server, that also has access to where ever the data is stored. do you have that?
2. you would need a developer to write a web page so that people could actually be presented with some sort of page so they know what is going on. Do you have a developer?
3. That developer would need the specifications of the project.
Examples: WHO can go to/see the form? the public? only certain clients i.e. require a login)
What inputs are required from the end user?
what is the expected output (you said excel)
in reality, it's typical to present the data as a web page, and provide an optional download as a pdf or csv or xls file.
The web page can then be coded to take into consideration the security, presentation and export of the desired data.
so you need a lot of background capabilities for this question to be answered with any degree of detail.
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