Review and confirm that your Raiser's Edge database files consists of only 6 database files in the format listed (5 MDF files and 1 LDF file). If your Raiser's Edge database files contain different or more files, then you will not be able to attach them in the Blackbaud Management Console. 

Please contact the appropriate software vendor or IT professional for assistance with this process or issue, which is beyond Blackbaud's scope of support.