Real Time Graph

[Real Time Graph]

How to generate interactive graphs daily,weekly,monthly,yearly on it which pull their data from excel files from other website which get updated with time.

[Automatically Updating Interactive Graphs?]

Hello,

I am doing a project and for that I have to create a website in that I have to generate interactive graphs daily,weekly,monthly,yearly on it which pull their data from excel files(very long files i can not type them manually) from other website which get updated with time.

Or

I have another method, same self updating data is on a website in form of table which gets updated with time. So , is it possilble to pull data from there for specific parameters and generate live data graphs?

Can you please help me in suggesting some ideas? How can I do it and if you are not clear with the situation then please let me know.

Is this possible with javascript or I need something else.
As I am a beginner , so do not know much.

Thanks