Şifrelenmiş dosyayı açmadan önce parolayı kontrol et.

Those endings mark the definite direct object in Turkish, often called the accusative case.

• dosya = file
• dosyayı = the file / the specific file
• parola = password
• parolayı = the password / the specific password

In this sentence, both objects are specific:

• şifrelenmiş dosyayı = the encrypted file
• parolayı = the password

The -y- is just a buffer consonant added because the noun ends in a vowel:

• dosya + -(y)ı → dosyayı
• parola + -(y)ı → parolayı

So this is not a separate word part with meaning by itself; it is there to make pronunciation smoother.

Şifrelenmiş means encrypted.

It comes from the verb şifrelenmek, which means to be encrypted / to get encrypted.

Breakdown:

• şifre = code, cipher, password (depending on context)
• şifrele- = to encrypt
• şifrelen- = to be encrypted
• şifrelenmiş = encrypted / having been encrypted

The ending -miş here is being used like a participle, so it turns the verb into a word that describes a noun:

• şifrelenmiş dosya = encrypted file

A good way to think of it is:

• açılmış kapı = opened door
• yazılmış mektup = written letter
• şifrelenmiş dosya = encrypted file

So şifrelenmiş is functioning like an adjective.

Yes, by itself -madan / -meden often means without doing:

• yemeden = without eating
• bakmadan = without looking
• açmadan = without opening

But when you add önce, the whole expression -madan önce means before doing.

So:

• açmadan önce = before opening

This is a very common Turkish pattern:

• Gitmeden önce ara. = Call before going.
• Yatmadan önce kitap okurum. = I read before sleeping.
• Çıkmadan önce kapıyı kapat. = Close the door before leaving.

So in this sentence:

• Şifrelenmiş dosyayı açmadan önce...
  = Before opening the encrypted file...

Even though -madan alone can mean without opening, the addition of önce changes the meaning to before opening.

Because açmadan by itself usually means without opening, not before opening.

Compare:

• Dosyayı açmadan parolayı kontrol et.
  = Check the password without opening the file.

• Dosyayı açmadan önce parolayı kontrol et.
  = Check the password before opening the file.

In real use, -madan önce is the normal and clear way to say before doing something.

So önce is important here because it tells you the intended meaning is before, not just without.

Because kontrol etmek is a common Turkish compound verb made from:

• kontrol = check, control, inspection
• etmek = to do

Together:

• kontrol etmek = to check / to inspect

Turkish has many verbs of this type:

• yardım etmek = to help
• fark etmek = to notice
• kabul etmek = to accept
• takip etmek = to follow

So kontrol et is just the imperative form of kontrol etmek.

It is the informal singular imperative: a command addressed to one person in a casual or neutral way.

• kontrol et = check!

This is the form you would use with:

• a friend
• a child
• a user in instructions
• general step-by-step directions

Other related forms:

• kontrol edin = check!
  polite singular or plural
• kontrol etme = don’t check!
• kontrol etmeyin = don’t check!
  polite/plural

So this sentence sounds like an instruction:

• Check the password before opening the encrypted file.

Yes, Turkish word order is flexible, but this version is very natural.

The sentence is:

• Şifrelenmiş dosyayı açmadan önce parolayı kontrol et.

A rough structure is:

• [Before opening the encrypted file] [check the password].

Turkish often puts the main verb at the end, so kontrol et comes last.

You could also hear variations like:

• Parolayı, şifrelenmiş dosyayı açmadan önce kontrol et.
• Şifrelenmiş dosyayı açmadan önce, parolayı kontrol et.

These all mean basically the same thing, but the original version is smooth and standard.

Because in Turkish, words that describe a noun usually come before the noun, just like in English.

• şifrelenmiş dosya = encrypted file
• büyük ev = big house
• kırmızı araba = red car

When the noun takes a case ending, the descriptive word usually stays unchanged:

• şifrelenmiş dosya = encrypted file
• şifrelenmiş dosyayı = the encrypted file (as object)

So the accusative ending goes on dosya, not on şifrelenmiş.

Yes, although in everyday Turkish people often mix them.

In careful usage:

• parola = password
• şifre = code, cipher, PIN, password, encryption key, etc.

In everyday speech, many Turkish speakers use şifre for password too:

• Wi-Fi şifresi = Wi-Fi password
• Banka şifresi = bank password / PIN

But in a more technical or careful sentence, parola can sound more precise for password, while şifrelenmiş clearly refers to encrypted.

So this sentence uses both in a logical way:

• şifrelenmiş dosya = encrypted file
• parola = password

Because Turkish normally uses -madan önce or sometimes -meden önce to mean before doing.

The pattern -maktan önce / -mekten önce also exists, but it is generally less common in everyday instructions and can sound more formal or less natural depending on the verb and context.

The most common practical pattern is:

• gitmeden önce
• bakmadan önce
• açmadan önce

So for learners, -madan önce = before doing is the main pattern to remember.

Yes. Turkish often leaves the subject unstated when it is clear from context.

In this sentence:

• kontrol et = check!

Because the imperative already tells you this is a command to you, Turkish does not need to say sen.

So the full understood meaning is something like:

• Sen, şifrelenmiş dosyayı açmadan önce parolayı kontrol et.
• You, check the password before opening the encrypted file.

But adding sen would usually be unnecessary unless you want emphasis.

Not as naturally, because dosyayı has the accusative ending, which points to a specific file, not just any file.

So the Turkish suggests:

• the encrypted file
• that encrypted file

If the sentence were more indefinite, it might look different, for example:

• Şifrelenmiş bir dosya açmadan önce parolayı kontrol et.

That would be closer to:

• Check the password before opening an encrypted file.

So the original sentence most naturally refers to a particular file.