Partial decompression for rapid file or sub-file access

Embodiments of the present disclosure provide systems and methods for reverse decompression. According to one embodiment of the present disclosure, the method for reverse decompression includes receiving encoded and compressed input data in a form of one or more data blocks and locating an end of block marker for a last block of the one or more data blocks of the input data. The method also includes traversing the input data, bit by bit, in a reverse direction starting from a last bit of the end of block marker of the last block of the one or more data blocks of the input data towards a beginning of the input data, determining if one block of the one or more blocks of the input data can be designated as a valid block, designating the one block as a valid block and decompressing the valid block in a forward direction.