it can be done using txt file or database. Just create a resource as db or lines from file . Now use PARSE LINE option in TOOLS .Parse in same order as data in txt file or db . Ex user,pass,email,cookie etc. Untick Reuse Resource will make load new line every time you parse.
@BasUser110 a mask is not a data type, but a url mask. The url does not have to contain a file extension. You need to look at which queries load this data and write a mask for them.