Converting to FXT That can only be due to the script trying to open a non existing file so either the CSV is being copied to the wrong folder or the named is incorrect. Check the following items: A Hex Editor (e.g. WinHex, Neo Hex Editor) can be used to change it at offset 0xFC. Be aware that it's going to be displayed in hexadecimal so a calculator may have to be used here. Look up the offset in FXTHeader.mqh, which is displayed next to each setting. Use a hex editor. Note that all values .