The file given was decoded using XOR cipher.

After xoring the text with `RaziCTF{`, I got the key as `VERYSECURE`.

After a few trials, I found the key to be `VERYSECUREKEY`.

The decrypted text was :
```
RaziCTF{d0nt_r3pe4T_kEy_1N_X0R} You cannot be buried in obscurity , you are exposed upon a grand theater to the view of the world . If your actions are upright and benevolent , be assured they will augment your power and happiness.
```

Flag : `RaziCTF{d0nt_r3pe4T_kEy_1N_X0R}`