diff --git a/cmd/FLEcli_version.go b/cmd/FLEcli_version.go
index 752ff51..e294e86 100644
--- a/cmd/FLEcli_version.go
+++ b/cmd/FLEcli_version.go
@@ -1,4 +1,4 @@
 package cmd
  
 //VersionString is the version that will be displayed with the -v switch
-const VersionString = "v0.0.0.0-3-gefb75a4 (2020-07-13)"
+const VersionString = "v0.0.0.0-4-g0716f45 (2020-07-13)"
diff --git a/cmd/adif.go b/cmd/adif.go
index 316bc60..dc5d183 100644
--- a/cmd/adif.go
+++ b/cmd/adif.go
@@ -51,7 +51,7 @@ func init() {
 
 func processAdifCommand() {
 
-	verifiedOutputFilename, filenameWasOK := buildOutputFilename(outputFilename, inputFilename, isOverwrite)
+	verifiedOutputFilename, filenameWasOK := buildOutputFilename(outputFilename, inputFilename, isOverwrite, ".adi")
 	fmt.Println("adif called")
 	fmt.Println("Inputfile: ", inputFilename)
 	fmt.Println("OutputFile: ", outputFilename)
diff --git a/cmd/csv.go b/cmd/csv.go
index 83b8344..659a20d 100644
--- a/cmd/csv.go
+++ b/cmd/csv.go
@@ -47,13 +47,13 @@ func init() {
 
 func processCsvCommand() {
 
-	verifiedOutputFilename, filenameWasOK := buildOutputFilename(outputFilename, inputFilename, isOverwrite)
+	verifiedOutputFilename, filenameWasOK := buildOutputFilename(outputCsvFilename, inputFilename, isOverwrite, ".csv")
 	fmt.Println("csv called")
 	fmt.Println("Inputfile: ", inputFilename)
 	fmt.Println("OutputFile: ", outputFilename)
 	fmt.Println("computed output: ", verifiedOutputFilename)
 	fmt.Println("Output filenameWasOK: ", filenameWasOK)
-	fmt.Println("isOverwrite: ", isOverwrite)
+	fmt.Println("isOverwriteCsv: ", isOverwriteCsv)
 
 	// if the output file could not be parsed correctly do noting
 	if filenameWasOK {
diff --git a/cmd/adif_filename.go b/cmd/output_filename.go
similarity index 95%
rename from cmd/adif_filename.go
rename to cmd/output_filename.go
index 4c1f803..c5ff23f 100644
--- a/cmd/adif_filename.go
+++ b/cmd/output_filename.go
@@ -18,7 +18,6 @@ limitations under the License.
 
 import (
 	"os"
-	//"log"
 	"fmt"
 	"path/filepath"
 )
@@ -28,7 +27,7 @@ import (
 //	remove the extention
 
 //returning "" is considered as invalid
-func buildOutputFilename(output string, input string, overwrite bool) (outputFilename string, wasOK bool) {
+func buildOutputFilename(output string, input string, overwrite bool, newExtension string) (outputFilename string, wasOK bool) {
 	outputFilename = ""
 
 	//validate that input is populated (should never happen if properly called)
@@ -40,7 +39,7 @@ func buildOutputFilename(output string, input string, overwrite bool) (outputFil
 	if output == "" {
 		extension := filepath.Ext(input)
 		outputRootPart := input[0 : len(input)-len(extension)]
-		output = outputRootPart + ".adi"
+		output = outputRootPart + newExtension
 		fmt.Println("No output provided, defaulting to \"" + output + "\"")
 	}
 
diff --git a/cmd/adif_filename_test.go b/cmd/output_filename_test.go
similarity index 75%
rename from cmd/adif_filename_test.go
rename to cmd/output_filename_test.go
index 61f4edb..68b1ebb 100644
--- a/cmd/adif_filename_test.go
+++ b/cmd/output_filename_test.go
@@ -30,6 +30,7 @@ func Test_buildOutputFilename(t *testing.T) {
 		output    string
 		input     string
 		overwrite bool
+		extension string
 	}
 	tests := []struct {
 		name               string
@@ -39,37 +40,37 @@ func Test_buildOutputFilename(t *testing.T) {
 	}{
 		{
 			"input file not provided",
-			args{input: "", output: "xxx", overwrite: false},
+			args{input: "", output: "xxx", overwrite: false, extension: ".adi"},
 			"", false,
 		},
 		{
 			"Output file does not exist",
-			args{input: "a file", output: "output.adi", overwrite: false},
+			args{input: "a file", output: "output.adi", overwrite: false, extension: ".adi"},
 			"output.adi", true,
 		},
 		{
 			"Output name is a directory",
-			args{input: "a file", output: testDir, overwrite: false},
+			args{input: "a file", output: testDir, overwrite: false, extension: ".adi"},
 			"", false,
 		},
 		{
 			"Output exist but no overwrite",
-			args{input: "a file", output: testFile, overwrite: false},
+			args{input: "a file", output: testFile, overwrite: false, extension: ".adi"},
 			"", false,
 		},
 		{
 			"no output, input provided with extention",
-			args{input: "/test/data/file.txt", output: "", overwrite: false},
+			args{input: "/test/data/file.txt", output: "", overwrite: false, extension: ".adi"},
 			"/test/data/file.adi", true,
 		},
 		{
 			"no output, input provided without extention",
-			args{input: "/test/data/file", output: "", overwrite: false},
+			args{input: "/test/data/file", output: "", overwrite: false, extension: ".adi"},
 			"/test/data/file.adi", true,
 		},
 		{
 			"no output, input provided, enfing with a point",
-			args{input: "/test/data/file.", output: "", overwrite: false},
+			args{input: "/test/data/file.", output: "", overwrite: false, extension: ".adi"},
 			"/test/data/file.adi", true,
 		},
 	}
@@ -79,7 +80,7 @@ func Test_buildOutputFilename(t *testing.T) {
 
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			gotOutputFilename, gotWasOK := buildOutputFilename(tt.args.output, tt.args.input, tt.args.overwrite)
+			gotOutputFilename, gotWasOK := buildOutputFilename(tt.args.output, tt.args.input, tt.args.overwrite, tt.args.extension)
 			if gotOutputFilename != tt.wantOutputFilename {
 				t.Errorf("buildOutputFilename() gotOutputFilename = %v, want %v", gotOutputFilename, tt.wantOutputFilename)
 			}