diff --git a/gaboshlib/g_num_exponential2normal_file.sh b/gaboshlib/g_num_exponential2normal_file.sh
new file mode 100644
index 0000000..6634784
--- /dev/null
+++ b/gaboshlib/g_num_exponential2normal_file.sh
@@ -0,0 +1,11 @@
+function g_num_exponential2normal_file {
+  # changes expionential numbers in normal notation in given file
+  local g_file=$1
+  local g_substitution g_exnum
+  for g_exnum in $(egrep -o -i "[0-9]+\.[0-9]+e[\+\-][0-9]+" "$g_file" | sort -u)
+  do
+    g_num_exponential2normal $g_exnum && g_substitution="${g_substitution}s/${g_exnum}/${g_num_exponential2normal_result}/g;"
+  done
+  sed -i "${g_substitution}" "$g_file" && return 0
+}
+