Login To Your Gemini Account
Navigate to the History Page
Click the "Download History" Link
DO NOT open the file in Excel and "save as" a new file.
It's important to upload the raw file that Gemini exports straight from your "Downloads" folder. This avoids rounding errors and corrupting the file. If you need to edit your XLSX, please use Google Sheets.
Navigate to the Gemini tab on CryptoTrader.Tax and drag the file you just downloaded into the blue box.