Read excel from SD card into array

I am doing a job, I need to read the value from excel to arduino, and output the value into an analog pin, but not only one excel file, are many files, there are many numerical data in excel, so need to read excel directly File to output, or even can transfer the excel file to another file to read it.

I am a novice arduino, do not know how to deal with,
My English is not good, so use google translation may be wrong, sorry
Thank you for helping me. :笑臉迷惑: :笑臉迷惑:

Tell us you have used a HEX dump program to print the Excel file, so you know what you are dealing with.

Perhaps you need to convert the excel file to a comma delimited file.

Paul