diff --git a/lang/gpxsee_cs.ts b/lang/gpxsee_cs.ts
index 4449298af..5bce0bfbc 100644
--- a/lang/gpxsee_cs.ts
+++ b/lang/gpxsee_cs.ts
@@ -47,57 +47,62 @@
 <context>
     <name>Data</name>
     <message>
-        <location filename="../src/data/data.cpp" line="113"/>
+        <location filename="../src/data/data.cpp" line="116"/>
         <source>Supported files</source>
         <translation>Podporované soubory</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>CSV files</source>
         <translation>Soubory CSV</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>FIT files</source>
         <translation>Soubory FIT</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>GPX files</source>
         <translation>Soubory GPX</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>IGC files</source>
         <translation>Soubory IGC</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>KML files</source>
         <translation>Soubory KML</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>LOC files</source>
         <translation>Soubory LOC</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="118"/>
+        <location filename="../src/data/data.cpp" line="121"/>
         <source>NMEA files</source>
         <translation>Soubory NMEA</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="119"/>
+        <location filename="../src/data/data.cpp" line="122"/>
         <source>OziExplorer files</source>
         <translation>Soubory OziExploreru</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
         <source>TCX files</source>
         <translation>Soubory TCX</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
+        <source>SLF files</source>
+        <translation>Soubory SLF</translation>
+    </message>
+    <message>
+        <location filename="../src/data/data.cpp" line="124"/>
         <source>All files</source>
         <translation>Všechny soubory</translation>
     </message>
diff --git a/lang/gpxsee_de.ts b/lang/gpxsee_de.ts
index e4d6bd09d..c13d0c622 100644
--- a/lang/gpxsee_de.ts
+++ b/lang/gpxsee_de.ts
@@ -47,57 +47,62 @@
 <context>
     <name>Data</name>
     <message>
-        <location filename="../src/data/data.cpp" line="113"/>
+        <location filename="../src/data/data.cpp" line="116"/>
         <source>Supported files</source>
         <translation>Unterstütze Dateien</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>CSV files</source>
         <translation>CSV-Dateien</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>FIT files</source>
         <translation>FIT-Dateien</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>GPX files</source>
         <translation>GPX-Dateien</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>IGC files</source>
         <translation>IGC-Dateien</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>KML files</source>
         <translation>KML-Dateien</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>LOC files</source>
         <translation>LOC-Dateien</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="118"/>
+        <location filename="../src/data/data.cpp" line="121"/>
         <source>NMEA files</source>
         <translation>NMEA-Dateien</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="119"/>
+        <location filename="../src/data/data.cpp" line="122"/>
         <source>OziExplorer files</source>
         <translation>OziExplorer-Dateien</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
         <source>TCX files</source>
         <translation>TCX-Dateien</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
+        <source>SLF files</source>
+        <translation>SLF-Dateien</translation>
+    </message>
+    <message>
+        <location filename="../src/data/data.cpp" line="124"/>
         <source>All files</source>
         <translation>Alle Dateien</translation>
     </message>
diff --git a/lang/gpxsee_fi.ts b/lang/gpxsee_fi.ts
index b53e7e287..00785ee00 100644
--- a/lang/gpxsee_fi.ts
+++ b/lang/gpxsee_fi.ts
@@ -47,57 +47,62 @@
 <context>
     <name>Data</name>
     <message>
-        <location filename="../src/data/data.cpp" line="113"/>
+        <location filename="../src/data/data.cpp" line="116"/>
         <source>Supported files</source>
         <translation>Tuetut tiedostot</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>CSV files</source>
         <translation>CSV-tiedostot</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>FIT files</source>
         <translation>FIT-tiedostot</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>GPX files</source>
         <translation>GPX-tiedostot</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>IGC files</source>
         <translation>IGC-tiedostot</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>KML files</source>
         <translation>KML-tiedostot</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>LOC files</source>
         <translation>LOC-tiedostot</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="118"/>
+        <location filename="../src/data/data.cpp" line="121"/>
         <source>NMEA files</source>
         <translation>NMEA-tiedostot</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="119"/>
+        <location filename="../src/data/data.cpp" line="122"/>
         <source>OziExplorer files</source>
         <translation>OziExplorer-tiedostot</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
         <source>TCX files</source>
         <translation>TCX-tiedostot</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
+        <source>SLF files</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../src/data/data.cpp" line="124"/>
         <source>All files</source>
         <translation>Kaikki tiedostot</translation>
     </message>
diff --git a/lang/gpxsee_fr.ts b/lang/gpxsee_fr.ts
index 3e8fc288b..41e134a45 100644
--- a/lang/gpxsee_fr.ts
+++ b/lang/gpxsee_fr.ts
@@ -47,57 +47,62 @@
 <context>
     <name>Data</name>
     <message>
-        <location filename="../src/data/data.cpp" line="113"/>
+        <location filename="../src/data/data.cpp" line="116"/>
         <source>Supported files</source>
         <translation>Formats pris en charge</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>CSV files</source>
         <translation>Données CSV</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>FIT files</source>
         <translation>Données FIT</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>GPX files</source>
         <translation>Données GPX</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>IGC files</source>
         <translation>Données IGC</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>KML files</source>
         <translation>Données KML</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>LOC files</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="118"/>
+        <location filename="../src/data/data.cpp" line="121"/>
         <source>NMEA files</source>
         <translation>Données NMEA</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="119"/>
+        <location filename="../src/data/data.cpp" line="122"/>
         <source>OziExplorer files</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
         <source>TCX files</source>
         <translation>Données TCX</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
+        <source>SLF files</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../src/data/data.cpp" line="124"/>
         <source>All files</source>
         <translation>Tous les fichiers</translation>
     </message>
diff --git a/lang/gpxsee_pl.ts b/lang/gpxsee_pl.ts
index 636c56c94..b6fdf8f13 100644
--- a/lang/gpxsee_pl.ts
+++ b/lang/gpxsee_pl.ts
@@ -47,57 +47,62 @@
 <context>
     <name>Data</name>
     <message>
-        <location filename="../src/data/data.cpp" line="113"/>
+        <location filename="../src/data/data.cpp" line="116"/>
         <source>Supported files</source>
         <translation>Obsługiwane pliki</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>CSV files</source>
         <translation>Pliki CSV</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>FIT files</source>
         <translation>Pliki FIT</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>GPX files</source>
         <translation>Pliki GPX</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>IGC files</source>
         <translation>Pliki IGC</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>KML files</source>
         <translation>Pliki KML</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>LOC files</source>
         <translation type="unfinished"></translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="118"/>
+        <location filename="../src/data/data.cpp" line="121"/>
         <source>NMEA files</source>
         <translation>Pliki NMEA</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="119"/>
+        <location filename="../src/data/data.cpp" line="122"/>
         <source>OziExplorer files</source>
         <translation>Pliki OziExplorer</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
         <source>TCX files</source>
         <translation>Pliki TCX</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
+        <source>SLF files</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../src/data/data.cpp" line="124"/>
         <source>All files</source>
         <translation>Wszystkie pliki</translation>
     </message>
diff --git a/lang/gpxsee_ru.ts b/lang/gpxsee_ru.ts
index 0dd8658b2..ce5ee9dac 100644
--- a/lang/gpxsee_ru.ts
+++ b/lang/gpxsee_ru.ts
@@ -47,57 +47,62 @@
 <context>
     <name>Data</name>
     <message>
-        <location filename="../src/data/data.cpp" line="113"/>
+        <location filename="../src/data/data.cpp" line="116"/>
         <source>Supported files</source>
         <translation>Все поддерживаемые файлы</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>CSV files</source>
         <translation>CSV файлы</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>FIT files</source>
         <translation>FIT файлы</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>GPX files</source>
         <translation>GPX файлы</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>IGC files</source>
         <translation>IGC файлы</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>KML files</source>
         <translation>KML файлы</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>LOC files</source>
         <translation>LOC файлы</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="118"/>
+        <location filename="../src/data/data.cpp" line="121"/>
         <source>NMEA files</source>
         <translation>NMEA файлы</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="119"/>
+        <location filename="../src/data/data.cpp" line="122"/>
         <source>OziExplorer files</source>
         <translation>OziExplorer файлы</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
         <source>TCX files</source>
         <translation>TCX файлы</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
+        <source>SLF files</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../src/data/data.cpp" line="124"/>
         <source>All files</source>
         <translation>Все файлы</translation>
     </message>
diff --git a/lang/gpxsee_sv.ts b/lang/gpxsee_sv.ts
index 99bc17963..dfe5e4a93 100644
--- a/lang/gpxsee_sv.ts
+++ b/lang/gpxsee_sv.ts
@@ -47,57 +47,62 @@
 <context>
     <name>Data</name>
     <message>
-        <location filename="../src/data/data.cpp" line="113"/>
+        <location filename="../src/data/data.cpp" line="116"/>
         <source>Supported files</source>
         <translation>Filer som stöds</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>CSV files</source>
         <translation>CSV-filer</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="115"/>
+        <location filename="../src/data/data.cpp" line="118"/>
         <source>FIT files</source>
         <translation>FIT-filer</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>GPX files</source>
         <translation>GPX-filer</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="116"/>
+        <location filename="../src/data/data.cpp" line="119"/>
         <source>IGC files</source>
         <translation>IGC-filer</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>KML files</source>
         <translation>KML-filer</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="117"/>
+        <location filename="../src/data/data.cpp" line="120"/>
         <source>LOC files</source>
         <translation>LOC-filer</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="118"/>
+        <location filename="../src/data/data.cpp" line="121"/>
         <source>NMEA files</source>
         <translation>NMEA-filer</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="119"/>
+        <location filename="../src/data/data.cpp" line="122"/>
         <source>OziExplorer files</source>
         <translation>OziExplorer-filer</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
         <source>TCX files</source>
         <translation>TCX-filer</translation>
     </message>
     <message>
-        <location filename="../src/data/data.cpp" line="120"/>
+        <location filename="../src/data/data.cpp" line="123"/>
+        <source>SLF files</source>
+        <translation type="unfinished"></translation>
+    </message>
+    <message>
+        <location filename="../src/data/data.cpp" line="124"/>
         <source>All files</source>
         <translation>Alla filer</translation>
     </message>