The client analysis report is a list of clients that compares invoiced total on jobs with quoted price on the same jobs, and reports the difference as an amount and a percentage. The selection of jobs used is defined by a job date, normally final invoiced would be used, but any job date can be selected - any job with a matching date in the period specified will be included in its client values reported.
This report has no special options, and lists clients even if there are no jobs with a matching date in the period specified. The export version is the same report, in a text file, no additional columns of data are included.