3Com WX4400 Reference Manual page 115

4 Click Yes next to File.
5 In the format listbox, select Ekahau.
6 Click Choose to navigate to the csv file that contains the RF
measurement data.
7 In the Map Name field, specify the map name.
The map name must match the name specified in the site survey work
order, and must be the same map name used in the site survey tool.
8 Click Next.
The import progress is displayed. When the import is done, check the
Total valid RF measurements found line in the progress messages.
If the number is greater than 0, 3WXM successfully imported
measurements.
If the number is 0, no measurements were imported. Try the
import again and verify that the map name is correct.
Specifying the RF Characteristics of a Floor 115