OfficeScan will not scan a file if its file extension matches any of the extensions included in this exclusion list. You can specify a maximum of 256 file extensions. A period (.) is not required before the extension.
For Manual Scan, Scheduled Scan, and Scan Now, use a question mark (?) or asterisk (*) as a wildcard character. For example, if you do not want to scan all files with extensions starting with D, such as DOC, DOT, or DAT, type D* or D?.
Real-time Scan does not support the use of wildcard characters when specifying extensions.