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We undertake a spectral study of a sample of bright X-ray sources taken fromsix XMM-Newton fields at high galactic latitudes, where AGN are the mostpopulous class. These six fields were chosen such that the observation had anexposure time more than 60 ksec, had data from the EPIC-pn detector in thefull-Frame mode and lying at high galactic latitude $|b| > 25^o$ . The analysisstarted by fitting the spectra of all sources with an absorbed power-law model,and then we fitted all the spectra with an absorbed power-law with a low energyblack-body component model.The sources for which we added a black body gave anF-test probability of 0.01 or less (i.e. at 99% confidence level), wererecognized as sources that display soft excess. We perform a comparativeanalysis of soft excess spectral parameters with respect to the underlyingpower-law one for sources that satisfy this criterion. Those sources, that donot show evidence for a soft excess, based on the F-test probability at a 99%confidence level, were also fitted with the absorbed power-law with a lowenergy black-body component model with the black-body temperature fixed at 0.1and 0.2 keV. We establish upper limits on the soft excess flux for thosesources at these two temperatures. Finally we have made use of Aladdininteractive sky atlas and matching with NASA/IPAC Extragalactic Database (NED)to identify the X-ray sources in our sample. For those sources which areidentified in the NED catalogue, we make a comparative study of the soft excessphenomenon for different types of systems.

X-Ray Spectral Study of AGN Sources Content in Some Deep Extragalactic XMM-Newton Fields