diff --git a/BoerseDataConvert/BoerseDataConvert/Properties/launchSettings.json b/BoerseDataConvert/BoerseDataConvert/Properties/launchSettings.json
index 3708d10..e71f46f 100644
--- a/BoerseDataConvert/BoerseDataConvert/Properties/launchSettings.json
+++ b/BoerseDataConvert/BoerseDataConvert/Properties/launchSettings.json
@@ -2,7 +2,7 @@
   "profiles": {
     "BoerseDataConvert": {
       "commandName": "Project",
-      "commandLineArgs": "-i bigdata.zip -d input -o output"
+      "commandLineArgs": "-i smalldata.zip -d input -o output --fast"
     }
   }
 }
\ No newline at end of file
diff --git a/BoerseDataConvert/BoerseDataConvert/Views/Program.cs b/BoerseDataConvert/BoerseDataConvert/Views/Program.cs
index 6747fd3..03ffa89 100644
--- a/BoerseDataConvert/BoerseDataConvert/Views/Program.cs
+++ b/BoerseDataConvert/BoerseDataConvert/Views/Program.cs
@@ -49,7 +49,7 @@ namespace BoerseDataConvert
                 "The working directory is cleared recursively if it isn't empty!",
                 { "o|output=", "specify output directory", x => outputDirectory = x },
                 { "t|tags=", "specify tag file", x =>  tagsFile = x },
-                { "f|fast|fastcheck=", "specify tag file", x =>  fastCheck = true },
+                { "f|fast|fastcheck", "fastcheck mode", x =>  fastCheck = true },
                 { "<>", v => throw new ArgumentException("ERROR: Invalid arguments") }, // default
                 "",
                 "Created by D. Delchev and D. Byalkov, 2021"
diff --git a/BoerseDataConvert/Документация.docx b/BoerseDataConvert/Документация.docx
index 69f984b..cf20338 100644
Binary files a/BoerseDataConvert/Документация.docx and b/BoerseDataConvert/Документация.docx differ