Serial data to excel in Android

Hi,

For my internship i need to automate something. I need to get serial data out of a DE9 cable and send it by bluetooth to a Android tablet. After it gets to the tablet it should get in a excel file.

I was thinking to get the serial data with a max232 to a arduino and then send the data by bluetooth to the tablet.

My questions are:
-How can i get the data from the cable to the bluetooth sending.
-how to send it to the tablet.
-and does anyone know how i can get the received data on the tablet to a excel file on the tablet?

Thank you very much!