Hi there,
I am fluent in English so providing the data entry is English based then I can assure you that there will be no mistakes at all!
Also, I have had 18 months experience in working with spreadsheets for the National Health Service which are quite in depth.
I am confident that I can complete this for you efficiently and accurately, given all the information about the task.
I look forward to hearing from you.
Mollie Lunn.