I need some help on a download.

Im using firefox and was downloading PoE2, but i didnt have alot of time and had to switch the computer off when i was going out Parents.

So i thought i would copy the two files over into a folder so i could continue the download where i left off.

Is there any way to start the download again?

The two files are..

PoE2_Client_v1.0.0.zip
PoE2_Client_v1.0.0.zip.part

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Just ownage.