Исполнитель сохранил форматирование, с тем чтобы правообладатель проверил файл.

Not most likely. Although исполнитель can mean performer in some contexts, in business, legal, or technical Russian it often means the party who carries out the work — for example, contractor, executor, or service provider.

In a sentence about preserving formatting and checking a file, the legal/business meaning is much more likely than the artistic one.

Because Russian past-tense verbs agree with the subject in gender and number.

Here the subject is исполнитель, which is grammatically masculine singular, so the verb is сохранил.

Compare:

• исполнитель сохранил — masculine singular
• исполнительница сохранила — feminine singular
• исполнители сохранили — plural

So the form is chosen by grammar, not by English-style tense logic.

It is in the accusative, but for this kind of noun the accusative looks the same as the nominative.

• форматирование is a neuter inanimate singular noun.
• After сохранить, the direct object goes in the accusative.
• For neuter inanimate singular nouns, nominative = accusative.

So:

• nominative: форматирование
• accusative: форматирование

That is why there is no visible ending change.

It is a formal conjunction meaning:

• so that
• in order that
• with the aim that

It introduces a purpose clause.

So the structure is:

• main action: Исполнитель сохранил форматирование
• purpose: с тем чтобы правообладатель проверил файл

This expression sounds quite formal and is common in official or contractual writing.

You can. Человек speaking normally would very often say:

Исполнитель сохранил форматирование, чтобы правообладатель проверил файл.

The version with с тем чтобы is more formal, more bookish, and more typical of legal or administrative language. It gives the sentence a more official tone.

Because с тем чтобы introduces a subordinate clause of purpose, and Russian separates that clause with a comma.

So the sentence is divided like this:

• Исполнитель сохранил форматирование
• с тем чтобы правообладатель проверил файл

The comma marks the boundary between the main clause and the purpose clause.

You may also sometimes see с тем, чтобы in other texts, where the conjunction is split in writing, but here it is written as one unit after the comma.

This is a very common question. After чтобы, Russian usually uses a past-form verb, but the meaning is not ordinary past tense.

Here проверил means something like:

• check
• would check
• could check
• so that the rights holder might check

In other words, the form shows a desired / intended / goal-related action, not a completed past event.

A helpful way to think about it:

• чтобы already contains the element бы
• so the verb after it often appears in the same form you see in the past tense

So чтобы ... проверил is a normal Russian way to express purpose.

Because both actions are presented as complete, whole actions.

• сохранил = he preserved/kept the formatting successfully as a completed result
• проверил = the rights holder was meant to perform one complete check of the file

Perfective is natural when the sentence focuses on the result or completion of each action.

If you used imperfective forms, the emphasis would shift more toward process, repetition, or duration.

Yes.

In the clause чтобы правообладатель проверил файл:

• правообладатель = subject, nominative singular
• проверил = verb
• файл = direct object, accusative singular

So grammatically, the rights holder is the one who is supposed to do the checking.

Because Russian has no articles. A noun like файл can mean:

• a file
• the file

The exact meaning comes from context.

In a business or technical sentence like this, it often refers to a specific file already known to both sides, so English usually uses the file.

It is natural, but it sounds formal and official, not casual.

The formal tone comes from words and structures like:

• исполнитель
• правообладатель
• с тем чтобы

In everyday speech, a simpler version would be more likely, for example:

Исполнитель сохранил форматирование, чтобы правообладатель проверил файл.

So the original sentence is the kind of Russian you would expect in a contract, policy, report, or formal correspondence.

Yes. That would still be correct.

These are close in meaning:

• чтобы — simplest and most common
• для того чтобы — clear and neutral
• с тем чтобы — more formal/official

So all of these are possible, but they differ in style:

• чтобы → everyday, straightforward
• для того чтобы → neutral to formal
• с тем чтобы → distinctly formal, often legal or administrative