Hwo to create a form (grid form) something like excel sheet

I'm creating one module, basically a node module, and i'm trying to make a page through which i can add more than 5 data at once..

for example... normally when creating a content (administer - content), we can add only one content at a time. but instead of that i want to make a form in such a way so that the user can enter 5 or more contents at once..

Title | Price | Weight
----------------------------------
[text box] | [text box] | [text box]
[text box] | [text box] | [text box]
[text box] | [text box] | [text box]
[text box] | [text box] | [text box]
[text box] | [text box] | [text box]

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