diff --git a/tools/rlparser/output/raylib_api.json b/tools/rlparser/output/raylib_api.json
index 1d6b19c3f..0da5fc3e0 100644
--- a/tools/rlparser/output/raylib_api.json
+++ b/tools/rlparser/output/raylib_api.json
@@ -4427,7 +4427,7 @@
     },
     {
       "name": "FileRename",
-      "description": "Rename file (if exists)",
+      "description": "Rename file (if exists), returns 0 on success",
       "returnType": "int",
       "params": [
         {
@@ -4442,7 +4442,7 @@
     },
     {
       "name": "FileRemove",
-      "description": "Remove file (if exists)",
+      "description": "Remove file (if exists), returns 0 on success",
       "returnType": "int",
       "params": [
         {
@@ -4453,7 +4453,7 @@
     },
     {
       "name": "FileCopy",
-      "description": "Copy file from one path to another, dstPath created if it doesn't exist",
+      "description": "Copy file from one path to another, dstPath created if it doesn't exist, returns 0 on success",
       "returnType": "int",
       "params": [
         {
@@ -4468,7 +4468,7 @@
     },
     {
       "name": "FileMove",
-      "description": "Move file from one directory to another, dstPath created if it doesn't exist",
+      "description": "Move file from one directory to another, dstPath created if it doesn't exist, returns 0 on success",
       "returnType": "int",
       "params": [
         {
@@ -4483,7 +4483,7 @@
     },
     {
       "name": "FileTextReplace",
-      "description": "Replace text in an existing file",
+      "description": "Replace text in an existing file, returns 0 on success",
       "returnType": "int",
       "params": [
         {
@@ -4502,7 +4502,7 @@
     },
     {
       "name": "FileTextFindIndex",
-      "description": "Find text in existing file",
+      "description": "Find text in existing file, returns -1 if index not found or index otherwise",
       "returnType": "int",
       "params": [
         {
@@ -4652,8 +4652,8 @@
     },
     {
       "name": "ChangeDirectory",
-      "description": "Change working directory, return true on success",
-      "returnType": "bool",
+      "description": "Change working directory, returns 0 on success",
+      "returnType": "int",
       "params": [
         {
           "type": "const char *",
diff --git a/tools/rlparser/output/raylib_api.lua b/tools/rlparser/output/raylib_api.lua
index eaae7e493..6fa5d9321 100644
--- a/tools/rlparser/output/raylib_api.lua
+++ b/tools/rlparser/output/raylib_api.lua
@@ -4022,7 +4022,7 @@ return {
     },
     {
       name = "FileRename",
-      description = "Rename file (if exists)",
+      description = "Rename file (if exists), returns 0 on success",
       returnType = "int",
       params = {
         {type = "const char *", name = "fileName"},
@@ -4031,7 +4031,7 @@ return {
     },
     {
       name = "FileRemove",
-      description = "Remove file (if exists)",
+      description = "Remove file (if exists), returns 0 on success",
       returnType = "int",
       params = {
         {type = "const char *", name = "fileName"}
@@ -4039,7 +4039,7 @@ return {
     },
     {
       name = "FileCopy",
-      description = "Copy file from one path to another, dstPath created if it doesn't exist",
+      description = "Copy file from one path to another, dstPath created if it doesn't exist, returns 0 on success",
       returnType = "int",
       params = {
         {type = "const char *", name = "srcPath"},
@@ -4048,7 +4048,7 @@ return {
     },
     {
       name = "FileMove",
-      description = "Move file from one directory to another, dstPath created if it doesn't exist",
+      description = "Move file from one directory to another, dstPath created if it doesn't exist, returns 0 on success",
       returnType = "int",
       params = {
         {type = "const char *", name = "srcPath"},
@@ -4057,7 +4057,7 @@ return {
     },
     {
       name = "FileTextReplace",
-      description = "Replace text in an existing file",
+      description = "Replace text in an existing file, returns 0 on success",
       returnType = "int",
       params = {
         {type = "const char *", name = "fileName"},
@@ -4067,7 +4067,7 @@ return {
     },
     {
       name = "FileTextFindIndex",
-      description = "Find text in existing file",
+      description = "Find text in existing file, returns -1 if index not found or index otherwise",
       returnType = "int",
       params = {
         {type = "const char *", name = "fileName"},
@@ -4175,8 +4175,8 @@ return {
     },
     {
       name = "ChangeDirectory",
-      description = "Change working directory, return true on success",
-      returnType = "bool",
+      description = "Change working directory, returns 0 on success",
+      returnType = "int",
       params = {
         {type = "const char *", name = "dirPath"}
       }
diff --git a/tools/rlparser/output/raylib_api.txt b/tools/rlparser/output/raylib_api.txt
index ee54892d9..97d2350c0 100644
--- a/tools/rlparser/output/raylib_api.txt
+++ b/tools/rlparser/output/raylib_api.txt
@@ -1667,37 +1667,37 @@ Function 123: SetSaveFileTextCallback() (1 input parameters)
 Function 124: FileRename() (2 input parameters)
   Name: FileRename
   Return type: int
-  Description: Rename file (if exists)
+  Description: Rename file (if exists), returns 0 on success
   Param[1]: fileName (type: const char *)
   Param[2]: fileRename (type: const char *)
 Function 125: FileRemove() (1 input parameters)
   Name: FileRemove
   Return type: int
-  Description: Remove file (if exists)
+  Description: Remove file (if exists), returns 0 on success
   Param[1]: fileName (type: const char *)
 Function 126: FileCopy() (2 input parameters)
   Name: FileCopy
   Return type: int
-  Description: Copy file from one path to another, dstPath created if it doesn't exist
+  Description: Copy file from one path to another, dstPath created if it doesn't exist, returns 0 on success
   Param[1]: srcPath (type: const char *)
   Param[2]: dstPath (type: const char *)
 Function 127: FileMove() (2 input parameters)
   Name: FileMove
   Return type: int
-  Description: Move file from one directory to another, dstPath created if it doesn't exist
+  Description: Move file from one directory to another, dstPath created if it doesn't exist, returns 0 on success
   Param[1]: srcPath (type: const char *)
   Param[2]: dstPath (type: const char *)
 Function 128: FileTextReplace() (3 input parameters)
   Name: FileTextReplace
   Return type: int
-  Description: Replace text in an existing file
+  Description: Replace text in an existing file, returns 0 on success
   Param[1]: fileName (type: const char *)
   Param[2]: search (type: const char *)
   Param[3]: replacement (type: const char *)
 Function 129: FileTextFindIndex() (2 input parameters)
   Name: FileTextFindIndex
   Return type: int
-  Description: Find text in existing file
+  Description: Find text in existing file, returns -1 if index not found or index otherwise
   Param[1]: fileName (type: const char *)
   Param[2]: search (type: const char *)
 Function 130: FileExists() (1 input parameters)
@@ -1768,8 +1768,8 @@ Function 142: MakeDirectory() (1 input parameters)
   Param[1]: dirPath (type: const char *)
 Function 143: ChangeDirectory() (1 input parameters)
   Name: ChangeDirectory
-  Return type: bool
-  Description: Change working directory, return true on success
+  Return type: int
+  Description: Change working directory, returns 0 on success
   Param[1]: dirPath (type: const char *)
 Function 144: IsPathFile() (1 input parameters)
   Name: IsPathFile
diff --git a/tools/rlparser/output/raylib_api.xml b/tools/rlparser/output/raylib_api.xml
index 798cdd4cb..7fd73e2ed 100644
--- a/tools/rlparser/output/raylib_api.xml
+++ b/tools/rlparser/output/raylib_api.xml
@@ -1051,27 +1051,27 @@
         <Function name="SetSaveFileTextCallback" retType="void" paramCount="1" desc="Set custom file text data saver">
             <Param type="SaveFileTextCallback" name="callback" desc="" />
         </Function>
-        <Function name="FileRename" retType="int" paramCount="2" desc="Rename file (if exists)">
+        <Function name="FileRename" retType="int" paramCount="2" desc="Rename file (if exists), returns 0 on success">
             <Param type="const char *" name="fileName" desc="" />
             <Param type="const char *" name="fileRename" desc="" />
         </Function>
-        <Function name="FileRemove" retType="int" paramCount="1" desc="Remove file (if exists)">
+        <Function name="FileRemove" retType="int" paramCount="1" desc="Remove file (if exists), returns 0 on success">
             <Param type="const char *" name="fileName" desc="" />
         </Function>
-        <Function name="FileCopy" retType="int" paramCount="2" desc="Copy file from one path to another, dstPath created if it doesn't exist">
+        <Function name="FileCopy" retType="int" paramCount="2" desc="Copy file from one path to another, dstPath created if it doesn't exist, returns 0 on success">
             <Param type="const char *" name="srcPath" desc="" />
             <Param type="const char *" name="dstPath" desc="" />
         </Function>
-        <Function name="FileMove" retType="int" paramCount="2" desc="Move file from one directory to another, dstPath created if it doesn't exist">
+        <Function name="FileMove" retType="int" paramCount="2" desc="Move file from one directory to another, dstPath created if it doesn't exist, returns 0 on success">
             <Param type="const char *" name="srcPath" desc="" />
             <Param type="const char *" name="dstPath" desc="" />
         </Function>
-        <Function name="FileTextReplace" retType="int" paramCount="3" desc="Replace text in an existing file">
+        <Function name="FileTextReplace" retType="int" paramCount="3" desc="Replace text in an existing file, returns 0 on success">
             <Param type="const char *" name="fileName" desc="" />
             <Param type="const char *" name="search" desc="" />
             <Param type="const char *" name="replacement" desc="" />
         </Function>
-        <Function name="FileTextFindIndex" retType="int" paramCount="2" desc="Find text in existing file">
+        <Function name="FileTextFindIndex" retType="int" paramCount="2" desc="Find text in existing file, returns -1 if index not found or index otherwise">
             <Param type="const char *" name="fileName" desc="" />
             <Param type="const char *" name="search" desc="" />
         </Function>
@@ -1113,7 +1113,7 @@
         <Function name="MakeDirectory" retType="int" paramCount="1" desc="Create directories (including full path requested), returns 0 on success">
             <Param type="const char *" name="dirPath" desc="" />
         </Function>
-        <Function name="ChangeDirectory" retType="bool" paramCount="1" desc="Change working directory, return true on success">
+        <Function name="ChangeDirectory" retType="int" paramCount="1" desc="Change working directory, returns 0 on success">
             <Param type="const char *" name="dirPath" desc="" />
         </Function>
         <Function name="IsPathFile" retType="bool" paramCount="1" desc="Check if given path is a file or a directory">