I need to correct a value in a fiels in the "contacts" in mass through an excel file, with Idcontact as matching key.

 

If I update in zoho it will change the "last modification date" of today (given by zoho) for all the contacts records updated ! I want this date not to be updated as well as what update is totally not important. 

Any solution with creator ? or any other solution ? 

thanks

nono