file.name	strain.no	strain
SpeciesB_StrainX_1.mzXML	1	X
SpeciesB_StrainX_2.mzXML	1	X
SpeciesB_StrainX_3.mzXML	1	X
SpeciesB_StrainX_4.mzXML	1	X
SpeciesB_StrainY_1.mzXML	2	Y
SpeciesB_StrainY_2.mzXML	2	Y
SpeciesB_StrainY_3.mzXML	2	Y