I am very new to using ArcGIS. I have an Excel sheet with data in it where each cell represents a grid from a model output and contains a value (eg. amount of precipitation in that grid cell from the model output). I have taken the data and put it into ASCII format in order to import it to ArcMap. The data appears to import and display correctly on the map, but the attribute table does not maintain the original model out put values (eg. precipitation and location). Is there a way to change the attribute table to better reflect the data and get it in a format similar to what I started with? I will use these numbers later on for further analysis.
Below is a screen shot containing the map view, attribute table, and original text file that I imported.