The experiment file you are working in most likely has the data column set to report values with 0 decimal places. This option can be changed by doing the following:

1) Select Column Options from the Data menu and Select the data column of interest (i.e. conductivity).
2) The Column Options window will appear. Under Displayed Precision, either set the decimal places higher than 0 or switch to significant figures.
3) When finished click the OK button to close the Column Options window. At this point, you may wish to save this file with its current settings for a future use.