No me da igual que desaparezca la documentación; guárdala en la carpeta azul.

Dar igual is a very common expression meaning to make no difference or to be all the same to someone.

So:

• Me da igual = I don’t mind / It’s all the same to me / I don’t care
• No me da igual = I do mind / I do care / It is not all the same to me

In this sentence, No me da igual que desaparezca la documentación means the speaker is saying they definitely care if the documentation goes missing.

The me is an indirect object pronoun meaning to me.

Literally, dar igual works like:

• Me da igual = It is the same to me
• Te da igual = It is the same to you
• Le da igual = It is the same to him/her

So in No me da igual, the speaker is saying that this situation is not indifferent to me.

Because dar igual que is followed by the subjunctive when it introduces an action or situation.

Here, the speaker is expressing an attitude toward a possible event:

• que desaparezca la documentación

This is not presented as a fact; it is something that might happen, and the speaker is reacting to that possibility. That is why Spanish uses the subjunctive:

• No me da igual que desaparezca...

This is very common after expressions of emotion, evaluation, or personal reaction.

Because the structure requires a full subordinate clause introduced by que, and that clause needs a conjugated verb in the subjunctive.

So:

• que desaparezca = that it might disappear / that it disappear

You would not use the infinitive desaparecer here, because the subject of the second action is explicitly stated: la documentación.

A useful comparison:

• Me preocupa perder la documentación = I’m worried about losing the documentation.
  
  • Here the subject is effectively the same person, so an infinitive works.
• Me preocupa que desaparezca la documentación = I’m worried that the documentation may disappear.
  
  • Here you have a separate clause with que, so you need a conjugated verb.

The subject is la documentación.

So the structure is:

• que desaparezca la documentación

Even though documentation may feel like a mass noun in English, in Spanish la documentación is grammatically singular, so the verb is also singular:

• desaparezca not desaparezcan

In Spanish, la documentación is usually treated as a singular collective or mass noun, much like documentation in English.

So you normally say:

• la documentación está aquí
• la documentación desapareció

not usually:

• las documentaciones

unless you are talking about different sets/types of documentation in a very technical context. In normal use, singular is the natural choice.

Yes, literally it means disappear, but in this context it can also suggest:

• go missing
• get lost
• vanish

So que desaparezca la documentación is a natural way to say that the documentation might no longer be there, especially if it has been misplaced or lost.

Guárdala is made from:

• guarda = the affirmative tú command of guardar
• la = direct object pronoun, referring to la documentación

So:

• guarda + la = guárdala

In affirmative commands, object pronouns are attached to the end of the verb.

The written accent in guárdala is needed to keep the stress in the correct place after adding the pronoun.

Because when you attach la to guarda, the stress pattern changes unless you mark it.

Without the accent, guardala would not follow the intended pronunciation. Spanish adds the accent to preserve the original stress of guarda:

• guarda
• guárdala

This is very common with affirmative commands plus pronouns:

• hazlo
• dímelo
• escríbela
• guárdala

Because la refers back to la documentación, which is:

• feminine
• singular
• the direct object of guardar

So:

• guarda la documentación
• guárdala

Even though in English documentation may feel abstract or uncountable, Spanish still uses the feminine singular pronoun la to refer back to it.

Because this is an affirmative command.

With affirmative commands in Spanish, object pronouns are attached to the end of the verb:

• Guárdala

With many other verb forms, the pronoun comes before the verb:

• La guarda
• No la guardes
• La voy a guardar

So the position of the pronoun depends on the verb form. In affirmative imperatives, it goes after the verb.

The semicolon links two closely related parts:

1. No me da igual que desaparezca la documentación
2. guárdala en la carpeta azul

The first part expresses concern, and the second gives the instruction that follows from that concern.

A semicolon is stronger than a comma but softer than a full stop. It helps show that the two ideas are tightly connected. A full stop would also be possible:

• No me da igual que desaparezca la documentación. Guárdala en la carpeta azul.

Because guardar is commonly used with en to show where something is being kept or stored.

So:

• guárdala en la carpeta azul = keep/store it in the blue folder

Using a would not sound natural here. Spanish normally says guardar algo en a place when the idea is putting something away or keeping it there.

Because descriptive adjectives usually come after the noun in Spanish.

So:

• la carpeta azul = the blue folder

This is the normal order for color adjectives:

• el coche rojo
• la casa blanca
• la carpeta azul

Putting the adjective before the noun is unusual here and would sound marked or poetic.

Yes. Guárdala is the affirmative informal singular command, used when speaking to tú.

Other possibilities would be:

• Guárdela = formal singular (usted)
• Guardadla = informal plural in Spain (vosotros)
• Guárdenla = formal plural (ustedes)

Since you mentioned Spanish from Spain, it is useful to notice that vosotros forms exist there, but this sentence is addressing one person informally: guárdala.

Yes, that would be possible, but the nuance is a bit different.

• No me da igual que desaparezca la documentación = It’s not all the same to me if the documentation disappears / I do care
• Me importa que desaparezca la documentación sounds less natural if you mean I care that it might disappear, because me importa can sometimes sound like it matters to me in a more direct way

A more natural close alternative would often be:

• Me importa que no desaparezca la documentación
• Me preocupa que desaparezca la documentación

In your original sentence, no me da igual emphasizes I’m definitely not indifferent.

Because dar igual que + subjunctive is a fixed, natural structure in Spanish.

You simply say:

• Me da igual que venga
• No me da igual que falte dinero
• Me da igual que llueva

There is no extra article needed before que. The clause introduced by que acts as the thing that does or does not make a difference.

It is mostly neutral in tone, but the command guárdala makes it informal because it is the tú form.

The overall feel is:

• direct
• natural
• everyday

If you wanted a more formal version, you could say:

• No me da igual que desaparezca la documentación; guárdela en la carpeta azul.

That would be appropriate when speaking to usted.