Note:
In Linux any file extension can be used for binary executables. Linux does not identify executables by file extension: it uses "magic numbers" stored in the file.
That said, the convention is that .sh is a file extension used by shell scripts (text), not by binary executables. The convention is that binary executables typically do not have any file extension.
For example, giving the command cc at the command line in Linux does not result in the command Interpreter looking for cc.exe on the search path: instead it just searches for a file named cc with no extension.
It could be that your system is expecting a sh file but that file would be a text file to set up the environment and then run the binary executable.
