check tools-track changes
you can tell it to tack cahnges "since date":

"confused" wrote:

Hi I need to update a schedule weekly. I use an excel sheet to update the
schedule. Is there a way to show what data has been updated for the week.
There is a lot of data and it takes too much time to go line by line every
week to check what has been updated. Would i be able to dump the data into a
temporary excel file and have the changes highlighted?
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Thanks