Upload and file editing

Hello,
I'm having a problem I can not solve.
I would like the user of my flex application can select a CSV file directly on his hard drive disk then it will be parsed client-side.
Finally, I will send the information contained in this file to the server.
I know how to upload a file with FileReference but here, I really need to parse the file before any communication with the server.
Is this possible? I'm not sure to understand limits imposed by the sandbox.

There is no problem as long as you use Flex SDK 3.4+ and target Flash Player 10. I explain that here:
http://cookbooks.adobe.com/post_Loading_a_local_file_to_a_byte_array_in_Flash_Play-16715.h tml

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    Also how should be the servlet mapping for this code.?
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    Message was edited by:
    user461713

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