Import of Excel csv file into Manager

Hi
Just trying to import a csv file into Manager but it says the file is not valid. What can I do to correct this error. It is a Natwest Bank Account in Excel saved as a CSV file
Thank You
Nigel

maybe you should give some details of what is in your csv file?

Have you searched the forum - this question has been asked many, many, many times

Have you read and followed the guidelines here Import bank statements