XML is fine with me, could you give me some pointers on how to do this? should the input file look like say

Code:
<param1>8</param1> <param2>9</param2>  <value>2.5+8.9*I </value>
<param1>56</param1> <param2>5.6</param2>  <value>5.6+4.9*I </value>
then if this is correct how do I read this in, and what would be the best object to store the data in?