diff --git a/.gitattributes b/.gitattributes
index 36d5f70d147..9d0759a27f4 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -124,6 +124,8 @@ Approximate_min_ellipsoid_d/documentation/boundingbox.mw -text svneol=native#app
 Arrangement_2/bench/data/benchArrPolylines.xml svneol=native#text/xml
 Arrangement_2/bench/data/benchArrSegments.xml svneol=native#text/xml
 Arrangement_2/demo/Arrangement_2/arrangement_2.vcproj eol=crlf
+Arrangement_2/demo/Arrangement_2/data/conic/big_circ_arcs.dat -text
+Arrangement_2/demo/Arrangement_2/data/conic/circles_21.dat -text
 Arrangement_2/demo/Arrangement_2/data/polyline/ps_circs.dat -text
 Arrangement_2/demo/Arrangement_2/data/polyline/random_polylines_10_20.dat -text
 Arrangement_2/demo/Arrangement_2/data/polyline/sines.dat -text
diff --git a/Arrangement_2/demo/Arrangement_2/data/conic/big_circ_arcs.dat b/Arrangement_2/demo/Arrangement_2/data/conic/big_circ_arcs.dat
new file mode 100644
index 00000000000..e1e877746b9
--- /dev/null
+++ b/Arrangement_2/demo/Arrangement_2/data/conic/big_circ_arcs.dat
@@ -0,0 +1,41 @@
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diff --git a/Arrangement_2/demo/Arrangement_2/data/conic/circles_21.dat b/Arrangement_2/demo/Arrangement_2/data/conic/circles_21.dat
new file mode 100644
index 00000000000..b410f7686cc
--- /dev/null
+++ b/Arrangement_2/demo/Arrangement_2/data/conic/circles_21.dat
@@ -0,0 +1,22 @@
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