Oooh fuck, no

I did not change it back into wallet.dat
I was not aware that this was necessary.
Right now I do not feel like rescanning the entire blockchain. Do you guys think it is safe if I import the wallet.dat file to my wallet on blockchain.info? and how do I import the wallet.dat file into blockchain.info. Honestly I do not see the option?
From there I would like to transfer it to my electrum wallet. I am just wondering if I trust an online service with a reasonable sum of bitcoins.
Feedback appreciated

Best,
Clochard