diff --git a/km3net_testdata/data/evt/KM3Sim.evt b/km3net_testdata/data/evt/KM3Sim.evt
new file mode 100644
index 0000000000000000000000000000000000000000..aee7710602b5ac68af206771931060b27487dd2b
--- /dev/null
+++ b/km3net_testdata/data/evt/KM3Sim.evt
@@ -0,0 +1,233 @@
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+XSecFile: /afs/in2p3.fr/home/throng/km3net/src/gSeaGen/v4r1/dat/gxspl-seawater.xml
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+cut_nu: 1.00E-01   2.00E+01  -1.00E+00   1.00E+00
+depth: 2475.000
+drawing: surface
+flux: 12 FUNC 1E-9*pow(x,-2) 
+flux: -12 FUNC 1E-9*pow(x,-2) 
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+physics: gSeaGen 4.1 180126  165142
+physics: GENIE 2.10.2 180126  165142
+prop_code: PropaMuon
+seed: gSeaGen 1100001
+source_mode: DIFFUSE
+spectrum: -3.00
+tgen: 31556926.000000
+end_event:
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+end_event:
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+end_event:
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+weights: 1.340E+05    4.889E+07    3.123E-02
+end_event:
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+weights: 1.340E+05    1.817E+05    4.638E-03
+end_event:
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+
diff --git a/km3net_testdata/data/evt/example_corant_propa.evt b/km3net_testdata/data/evt/example_corant_propa.evt
new file mode 100644
index 0000000000000000000000000000000000000000..80602c01a21da0ee27aa24954b065a1a693a1430
--- /dev/null
+++ b/km3net_testdata/data/evt/example_corant_propa.evt
@@ -0,0 +1,145 @@
+start_run:        1
+physics: Corant    4.2.5293   160302      759
+physics:    propa  5296:529    12853
+seed: corsika       1000001    4999999
+seed: music           3          1
+cut_primary:   0.10E+04   0.10E+10 -1.0000 -0.0520
+cut_seamuon:        1000.000   0.10E+10 -1.0000 -0.0520
+norma: 0.100000E+01         1000
+spectrum:   0.000
+cut_in:                0.000   0.10E+10 -1.0000 -0.0520
+can:     0.000   922.000 *********
+propag: MUSIC seawater 02-03  160603   815
+det_geo: 
+end_event:
+start_event:        1       1
+center_on_can:          0      -791.44      1664.08       922.00   0.300984  -0.892170  -0.336810  0.50965E+08         0.00    14
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+neutrino:              48    -800.129    1698.359     922.000  0.301024 -0.892125 -0.336895       1780.961    25784.29    14      0   -11    -9
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+neutrino:              52    -816.085    1728.070     922.000  0.300947 -0.892022 -0.337234       1272.431    25688.08   -14      0   -64    -9
+neutrino:              53    -793.356    1674.591     922.000  0.301007 -0.892140 -0.336869       1298.818    25869.92    14      0    -8    -8
+neutrino:              54    -817.230    1728.600     922.000  0.300874 -0.892079 -0.337150       2852.588    25680.12    14      0   -11    -8
+neutrino:              55    -786.855    1673.882     922.000  0.301130 -0.892116 -0.336823       1583.781    25877.50   -14      0   -12    -9
+neutrino:              56    -791.823    1667.006     922.000  0.300997 -0.892176 -0.336783       5629.521    25891.96    14      0    -8    -9
+neutrino:              57    -784.213    1650.885     922.000  0.301034 -0.892184 -0.336728       2517.044    25950.88    14      0   -62   -12
+neutrino:              58    -782.935    1665.363     922.000  0.301154 -0.892134 -0.336755       1207.509    25906.38   -14      0   -12    -9
+neutrino:              59    -787.954    1652.607     922.000  0.300989 -0.892213 -0.336691       1320.009    25939.38   -14      1  -118  -118
+neutrino:              60    -807.352    1779.217     922.000  0.301270 -0.891814 -0.337496       1189.808    25543.96   -14      0   -12   -12
+end_event:
diff --git a/km3net_testdata/data/evt/example_numuNC.evt b/km3net_testdata/data/evt/example_numuNC.evt
new file mode 100644
index 0000000000000000000000000000000000000000..e93280c37b3d63366837d8660c1514a17f879719
--- /dev/null
+++ b/km3net_testdata/data/evt/example_numuNC.evt
@@ -0,0 +1,48 @@
+start_run:       23
+cut_nu: 0.100E+03 0.100E+09-0.100E+01 0.100E+01
+physics: GENHEN  7.1-120213  140220 1233
+drawing: Volume
+seed: GENHEN 3       4245         0         0
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+genhencut: 0.200E+04 0.000E+00
+nuflux: 0       3       0 0.500E+00 0.000E+00 0.200E+01 0.300E+01
+kcut: 2
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+usedetfile: true
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+detector: km3net_115.det                                                                                                           1 1
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+k40:     5000  1000     500
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+merg:    0.5  1
+end_event:
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+weights: 0.1433E+10  0.4326E+10  0.5304E+06
+w3list: 0  0.1226E-03  0.5304E+06
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+track_in: 2    388.374    109.881    343.123  0.836827 -0.224449 -0.499343   0.448172E+02   0.000000E+00 13
+hit:        1   34618  0.8756E+00    259.31  -3   2         1    261.10
+hit:        2   51919  0.1101E+01    327.77  -3   2         1    330.11
+hit:        3   34618  0.5787E+00    260.63  -3   4         1    261.90
+hit:        4   50793  0.7719E+00    484.44  -3   4         1    486.46
+hit:        5   51950  0.6948E+00    440.99  -3  11         1    440.40
+hit:        6      36  0.5127E+00    745.57  -1   0         1    746.11
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+end_event:
diff --git a/km3net_testdata/data/offline/mcv5.0.DAT004340.propa.sirene.jte.jchain.aanet.4340.root b/km3net_testdata/data/offline/mcv5.0.DAT004340.propa.sirene.jte.jchain.aanet.4340.root
new file mode 100644
index 0000000000000000000000000000000000000000..6e1986bd53fca673d610531416449f39b1a232d9
Binary files /dev/null and b/km3net_testdata/data/offline/mcv5.0.DAT004340.propa.sirene.jte.jchain.aanet.4340.root differ