Updated project metadata. Fungi are ubiquitous and are often confronted with the need to secure utilisable carbon from their external growth milieu through the use of extracellular proteins to scavenge for carbon from a vast array of complex polymeric carbon sources. This attribute is conserved across evolution in fungi. To understand how filamentous fungi extracellular proteins are modulated in response to the presence polymeric carbons in the environment, we have typed the array of the main extracellular proteins involved and their dynamics using a known hypercellulolytic fungus – Penicillium funiculosum (NCIM 1228), through multiplexed quantitative proteomics