What changes are required to modify CSV files before uploading them to KoinX?

• Upload your export files exactly as they arrive—never open, edit, or re‑save them in Google Sheets, Excel, or any other software. Modifying files can unintentionally change date formats, delimiters, character encoding, or numeric precision, leading to import errors.

Note: If your exchange provides a .zip or .tar.gz archive, extract it first with a reliable decompression tool (7‑Zip, WinZip, macOS Archive Utility, Linux tar), then get the CSV format for that.