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I have encountered an error "The File does not contain valid text characters" when I try to upload a file to the Generic Data Exchange Centre (GDEC). What can I do?

For files uploaded to Generic Data Exchange Centre (GDEC), you can only use the following characters in your file:

1234567890

abcdefghijklmnopqrstuvwxyz

ABCDEFGHIJKLMNOPQRSTUVWXYZ

~`!@#$%^&*()_+-=\|:;'",./?[]{}

Please ensure your file does not include any invalid characters (e.g. ¥ Ö £ etc).