I found this wallet.dat file on an old laptop.

I remember buying bitcoin or at least attempting to buy bitcoin on a poker site years ago. I can't remember if I actually purchased any because I remember not knowing how or what to do. But I found on the internet how to find wallets on old computers and wallah there it was..I now am trying the bktcoin core site and have been trying to understand this stuff but is very overwhelming. Is there anyone out there who can literally tell me step by step what to do. There are very few youtube vids that show this exact process and confuses the hell out of me. According to the file size, 1376kb, is it possible there are bitcoin on there. I see a request for 500 btc on bjtcore but I see no other transactions. Just says request. TIA!

TLDR: need step by step instructions on how to check this wallet.dat file.