How to change file type from DYN to EXEC and run it?

Question

ubuntu

There is a file.
In ELF-Header: Type: DYN (Shared object file)
after elfedit --output-type EXEC filename
In ELF-Header: Type: EXEC (Executable file)
[sudo] ./filename: command not found
How to run the file?

I saw answers with chmod +x, but, unfortunately, all rights to the file are already given: -rwxrwxrwx

The file is initially executable - this is something like a test)
Sorry for the super clumsy wording, I'm a complete 0 in unix.

Answer 1

Give it permissions and run chmod +x ./filename