AMW has a standard format that is ascii; in a comma separated format. Simply select the file and click OK> Everything else is automated.
A sample file is shown below. Each line is a separate point and contains the attributes point number,northing,easting,height and code. The Northing and Easting are typically in State Plane coordinates and feet especially if you are based in the US. In other countries you may have UTM and meters.
1 11968624.493 2145200.513 -62.009 2PER
2 11968606.267 2145191.992 -61.880 2PER
3 11968586.282 2145187.942 -61.782 2PER
4 11968565.923 2145186.701 -61.822 2PER
5 11968545.301 2145186.405 -61.785 2PER
6 11968524.552 2145186.375 -61.809 2PER
7 11968504.254 2145186.480 -61.804 2PER
8 11968483.836 2145186.461 -61.765 2PER
9 11968463.212 2145186.926 -61.783 2PER
10 11968442.722 2145187.853 -61.781 2PER
11 11968422.198 2145188.456 -61.780 2PER
12 11968401.726 2145189.233 -61.782 2PER