Currently, I am doing discovery scans to test policies put in place and I am having a high number of false positives within Excel documents. I was instructed that the proximity classification criteria does not work the same was as it does with text documents. Is this correct? If so what steps can I take besides using advanced patterns and dictionaries? Right now each classification is separated with one focusing on excel and a second one that looks at normal text documents.
Excel - Advanced Pattern / Dictionary / File Extension = Only Excel Documents and Other Spreadsheet
For example I am searching for Driver's Licenses - I receive false positives only inside excel documents
What other logic could I add to help remediate this problem?