אם הקובץ גדול מכדי לשלוח אותו עכשיו, אני אעלה אותו מחר מהמשרד.

אם means if and introduces a condition.

So the sentence has this basic structure:

• אם ... , ...
• If ..., ...

Here:

• אם הקובץ גדול מכדי לשלוח אותו עכשיו = If the file is too big to send now
• אני אעלה אותו מחר מהמשרד = I’ll upload it tomorrow from the office

Hebrew uses אם very straightforwardly for ordinary if clauses.

There is no separate word for is here, because in Hebrew, the present tense of to be is usually omitted.

So:

• הקובץ גדול literally looks like the file big
• but it means the file is big

This is extremely common in Hebrew. In the present tense, you normally just put the subject and the adjective/noun together.

Compare:

• הקובץ גדול = The file is big
• אני עייף = I am tired
• היא מורה = She is a teacher

But in past or future, Hebrew does use other forms to express to be or just structures the sentence differently.

Because the Hebrew definite article the is attached directly to the noun as a prefix.

• קובץ = file
• הקובץ = the file

The ה־ at the beginning is the word the.

Unlike English, Hebrew does not write it as a separate word. So you get one combined form:

• ה + קובץ = הקובץ

Because גדול must agree with קובץ in gender and number.

• קובץ is masculine singular
• so the adjective is also masculine singular: גדול

If the noun were feminine singular, you would usually get גדולה instead.

For example:

• הקובץ גדול = the file is big
• התמונה גדולה = the picture is big

So the form of the adjective tells you something about the noun it describes.

מכדי is part of a pattern used to express too X to do Y.

In this sentence:

• גדול מכדי לשלוח אותו עכשיו
• too big to send it now

The structure is:

• adjective + מכדי + infinitive

So:

• גדול מכדי לשלוח = too big to send
• literally, something like big beyond what is enough to send

You do not need to translate it word-for-word. It is best learned as a set pattern:

• קטן מכדי... = too small to...
• כבד מכדי... = too heavy to...
• מסובך מכדי... = too complicated to...

It is a useful and fairly standard expression.

לשלוח is the infinitive form of the verb to send.

In Hebrew, infinitives usually begin with ל־, often equivalent to English to in forms like to send, to write, to go.

So:

• לשלוח = to send
• לכתוב = to write
• ללכת = to go

After מכדי, Hebrew uses an infinitive:

• גדול מכדי לשלוח אותו = too big to send it

So the ל־ here is part of the infinitive.

Because Hebrew needs an explicit object here: send it.

• לשלוח = to send
• לשלוח אותו = to send it

The pronoun אותו means him or it for a masculine singular noun. Since קובץ is masculine singular, אותו is the correct form.

So this אותו refers back to הקובץ.

If you said only גדול מכדי לשלוח עכשיו, that would mean too big to send now, and the object would be left unstated. That can be okay in some contexts, but אותו makes the reference clear and explicit.

Because it is the object of a second verb.

There are two actions here:

1. לשלוח אותו = to send it
2. אעלה אותו = I will upload it

Each verb needs its own object if you want to say explicitly what is being sent or uploaded. Hebrew does not usually let one object pronoun automatically cover both verbs across the whole sentence.

So the repetition is normal:

• לשלוח אותו
• אעלה אותו

Also, the pronoun remains אותו both times because it still refers to הקובץ, a masculine singular noun.

אעלה means I will upload.

It is a first person singular future form. In many Hebrew future forms, a prefix is added to the verb, and for I that prefix is often א־.

So here:

• אעלה = I will upload

The subject אני is included too:

• אני אעלה אותו = I will upload it

Hebrew often allows you to omit אני because the verb form already shows the person:

• אעלה אותו מחר = I’ll upload it tomorrow

But including אני can add clarity or emphasis.

Good question. אעלה here comes from להעלות, not from לעלות.

These are related but different verbs:

• לעלות = to go up / to rise
• להעלות = to raise / to upload / to bring up

In modern Hebrew, להעלות קובץ is the normal way to say to upload a file.

So:

• אני אעלה את הקובץ = I will upload the file
• אני אעלה אותו = I will upload it

This is very common tech vocabulary in Hebrew.

מהמשרד means from the office.

It is made of:

• מ־ = from
• ה־ = the
• משרד = office

Together:

• מ + ה + משרד = מהמשרד

Hebrew often combines prepositions with the definite article into one written word.

So:

• משרד = office
• מהמשרד = from the office

This kind of combination is very common in Hebrew.

The given word order is very natural:

• אם ... , אני אעלה אותו...

Hebrew often places the if clause first, just like English. You could rearrange parts of the sentence for emphasis, but the original order is clear and standard.

Also, Hebrew does not need a separate word for then here. English sometimes says:

• If the file is too big, then I’ll upload it tomorrow

Hebrew usually just says:

• אם ... , ...

without adding anything extra.

So the sentence is complete and natural exactly as written.