SQL Script file .sql not showing any sql statements and asking for encoding, Please help

Hi, when opening sql server script file (.sql) its opening as blank file but there are several sql statements , when i am opening its alwasy asking me to encode ,
when checking sql file via online tool its giving me msg "Detected encoding 'UTF-16LE'"

please let me know how i can view my all written sql statements on this file.

any help will be really appreciated!!