Import and Export to and with Excel 2013

Import and Export to and with Excel 2013

Hello i Need to Export all user in an AD Domain (1000Users) to a csv, then i Need sort and make some changes, after this i would Import the csv File to the ADManager to make some changes to Group, profiles etc.
Can you tell me a way that works ? I have tried many ways, but one times, i see only "null" as users, an othertime i have errrors like "At line 966in the file 9values are found against 1values in the Header".
 
Thx for Help

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