Can I say this sentence?

"I'm sending you the document part by part"

My colleague can't open the word.doc format. That's why I make screenshots of the materials inside and send them one by one.

Thank you!

Question

Can I say this sentence?

"I'm sending you the document part by part"

My colleague can't open the word.doc format. That's why I make screenshots of the materials inside and send them one by one.

Thank you!

Answer

I'm sending you the documents in parts / portions.

I'll send you the documents in parts / portions.

I'm going to send you documents in parts / portions.

Answer

Let’s make small changes to your tenses too in the final sentence..,

How about this ?

That’s why I’ve made (present perfect) and am sending them (present continuous).

Answer

I’m sending you the document one part/piece at a time. (Maybe you could say ‘I’m instalments’)