You can modify on the xlsx file the coordinates on Lat1 and Long1 (from your choice).
To find your coordinates you can use google maps or other sites like this one : https://www.coordonnees-gps.fr/
Then you choose your radius and the precision needed (on my files i've choosen a precision of 5 degres delta angle and a radius of 100km).
If precision is different from 5 degres you just have to adjust the size of the array.
Then you copy the last column of the array and you paste it (only the values not the formulas) to a csv separated ";" file.
Then you import this CSV file as POI and you'll find it on MRA which is great !
Hope this helps,