1. A computer-implemented method for facilitating analytics on data sets stored in remote monolithic files, at least a portion of the method being performed by a computing device comprising at least one processor, the method comprising: identifying, within a secondary storage system, a monolithic file that: includes a secondary copy of a data set duplicated from a primary copy of the data set stored in a primary storage system; stores the secondary copy of the data set as a singular data block; identifying a set of individual data objects within the secondary copy of the data set included in the monolithic file; generating a set of virtual objects that represent the set of individual data objects identified within the secondary copy of the data set included in the monolithic file; exposing the set of virtual objects to a remote analytics engine via a network such that the individual data objects appear to the remote analytics engine to be stored locally on the remote analytics engine, wherein the remote analytics engine comprises a computer cluster that: includes a plurality of nodes; implements a distributed file system that manages data across the plurality of nodes; is unable to natively open or read monolithic files that store data sets as singular data blocks; enabling the remote analytics engine to perform at least one analytics job on the set of individual data objects identified within the secondary copy of the data set by way of the set of virtual objects exposed to the remote analytics engine via the network.