Error is due to the data being binary, You can use strings command to see the strings part which you would normally search.

strings data | grep -i whatever

Error is due to the data in the file being binary, you can use strings command to see the human readable (i.e. strings) part which you would normally search using grep

strings data | grep -i whatever

You can use strings command.

strings data | grep -i whatever

Error is due to the data being binary, You can use strings command to see the strings part which you would normally search.

strings data | grep -i whatever