The files contain mean monthly forecast streamflow at the 1st forecast lead month.  

Myanmar files
[Row] Years from 2001 to 2020
[Column] Hkamti,Mawlaik,Monywa,Katha,Sagaing,Magway,Pyay

Mekong files
[Row] Years from 2001 to 2020
[Column] ChiangSaen,LuangPrabang,ChiangKhan,Mukdahan,KhongChiam,Pakse,StungTreng,Kratie