Yes, you can update existing requirements using the "Import" functionality in Accompa.

To achieve this, include a column for Requirement ID in the Excel or CSV file being imported, and make sure that the values in this column have the proper format of RE-N, where "N" is an integer corresponding to the Requirement ID of an existing requirement.

In Step-3 of Import Wizard, match this column with "Requirement ID" from the 'Accompa Fields' picklist. When you click the 'Import' button - the existing requirements will be overwritten with values from the file.