Your cryptocurrency transaction history (i.e., trade and transfer data) can generally be found directly on the exchange / wallet website that you used. For detailed instructions on where to download your transaction history for all Lukka Software support exchanges, please click here.
There are some sources/venues that don't allow you to download your transaction history. In those scenarios, you may be able to use other tools to retrieve your information such as block explorers. If you are unable to retrieve a file with your transaction history, you may have to enter into your trades and transfers manually.