A computer-implemented method comprising: parsing, using at least one parser of a cell, a nested file, the nested file having a primary file and at least one secondary file (110, 110a, 110b) embedded within the primary file, wherein the cell can include hardware, software, firmware, and/or the like components; assigning, using the cell, a maliciousness score for the parsed primary file and the parsed at least one secondary file (110, 110a, 110b); generating, by the cell, an overall maliciousness score for the nested file, the overall maliciousness score based on at least one of the assigned maliciousness score for the parsed primary file and the parsed at least one secondary file (110, 110a, 110b), the overall maliciousness score indicating a level of confidence that the nested file contains malicious content; and providing, the overall maliciousness score to a data consumer indicating whether to proceed with consuming the nested file; characterized in that the at least one secondary file (110, 110a, 110b) has a second file format unknown to the cell and the operations further comprise identifying, by the cell, that the second file format is unknown to the cell; requesting, from a cloud service accessed over a network, parsing information associated with the second file format; receiving, from the cloud computing database over a network, the parsing information associated with the second file format; instantiating, using the parsing information associated with the second file format, a parser associated with the second file format for parsing files having the second file format; and, parsing using the parser associated with the second file format the at least one second file having the second file format. parsing, using at least one parser of a cell, a nested file, the nested file having a primary file and at least one secondary file (110, 110a, 110b) embedded within the primary file, wherein the cell can include hardware, software, firmware, and/or the like components; assigning, using the cell, a maliciousness score for the parsed primary file and the parsed at least one secondary file (110, 110a, 110b); generating, by the cell, an overall maliciousness score for the nested file, the overall maliciousness score based on at least one of the assigned maliciousness score for the parsed primary file and the parsed at least one secondary file (110, 110a, 110b), the overall maliciousness score indicating a level of confidence that the nested file contains malicious content; and providing, the overall maliciousness score to a data consumer indicating whether to proceed with consuming the nested file; characterized in that the at least one secondary file (110, 110a, 110b) has a second file format unknown to the cell and the operations further comprise identifying, by the cell, that the second file format is unknown to the cell; requesting, from a cloud service accessed over a network, parsing information associated with the second file format; receiving, from the cloud computing database over a network, the parsing information associated with the second file format; instantiating, using the parsing information associated with the second file format, a parser associated with the second file format for parsing files having the second file format; and, parsing using the parser associated with the second file format the at least one second file having the second file format.