diff --git a/doc/en/scripting.md b/doc/en/scripting.md
index b37b7633..6cd8f96b 100644
--- a/doc/en/scripting.md
+++ b/doc/en/scripting.md
@@ -390,84 +390,7 @@ hud.get_block_inventory() -> int
 
 Get open block inventory ID or 0
 
-## Engine libraries
-
-### file
-
-Filesystem interaction library.
-
-```python
-file.resolve(path: str) -> str
-```
-
-Function turns *entry_point:path* (example *user:worlds/house1*) to a regular path. (example *C://Users/user/.voxeng/worlds/house1*)
-
-> [!NOTE]
-> The function should be used for debug only. *entry_point:path* notation is required in all **file** functions.
-
-Resulting path is not canonical and may be relative.
-
-```python
-file.read(path: str) -> str
-```
-
-Read whole text file.
-
-```python
-file.read_bytes(path: str) -> array of integers
-```
-
-Read file into bytes array.
-
-```python
-file.write(path: str, text: str) -> nil
-```
-
-Overwrite text file.
-
-```python
-file.write_bytes(path: str, data: array of integers)
-```
-
-Overwrite binary file with bytes array.
-
-```python
-file.length(path: str) -> int
-```
-
-Get file length (bytes) or 0.
-
-```python
-file.exists(path: str) -> bool
-```
-
-Check if file or directory exist.
-
-```python
-file.isfile(path: str) -> bool
-```
-
-Check if the path points to a file.
-
-```python
-file.isdir(path: str) -> bool
-```
-
-Check if the path points to a directory.
-
-```python
-file.mkdir(path: str) -> bool
-```
-
-Create directory. Returns true if new directory created
-
-```python
-file.mkdirs(path: str) -> bool
-```
-
-Create directories chain. Returns true if new directory created
-
-### time
+### *time* library
 
 ```python
 time.uptime() -> float
@@ -475,24 +398,8 @@ time.uptime() -> float
 
 Returns time elapsed since the engine started.
 
-## Available modules
-
-### TOML serialization/deserialization
-
-```lua
-local toml = require "core:toml"
-
-local t = {a=53, b=42, s="test", sub={x=1, y=6}}
-local s = toml.serialize(t)
-print(s)
-local t2 = toml.deserialize(s) 
-```
-output:
-```toml
-b = 42
-s = "test"
-a = 53
-[sub]
-y = 6
-x = 1
+```python
+time.delta() -> float
 ```
+
+Returns time elapsed since the last frame.
diff --git a/doc/en/scripting/filesystem.md b/doc/en/scripting/filesystem.md
new file mode 100644
index 00000000..79e2e7f1
--- /dev/null
+++ b/doc/en/scripting/filesystem.md
@@ -0,0 +1,89 @@
+# Filesystem and serialization
+
+### *file* library
+
+Filesystem interaction library.
+
+```python
+file.resolve(path: str) -> str
+```
+
+Function turns `entry_point:path` (example `user:worlds/house1`) to a regular path. (example `C://Users/user/.voxeng/worlds/house1`)
+
+> [!NOTE]
+> The function should be used for debug only. *entry_point:path* notation is required in all **file** functions.
+
+Resulting path is not canonical and may be relative.
+
+```python
+file.read(path: str) -> str
+```
+
+Read whole text file.
+
+```python
+file.read_bytes(path: str) -> array of integers
+```
+
+Read file into bytes array.
+
+```python
+file.write(path: str, text: str) -> nil
+```
+
+Overwrite text file.
+
+```python
+file.write_bytes(path: str, data: array of integers)
+```
+
+Overwrite binary file with bytes array.
+
+```python
+file.length(path: str) -> int
+```
+
+Get file length (bytes) or 0.
+
+```python
+file.exists(path: str) -> bool
+```
+
+Check if file or directory exist.
+
+```python
+file.isfile(path: str) -> bool
+```
+
+Check if the path points to a file.
+
+```python
+file.isdir(path: str) -> bool
+```
+
+Check if the path points to a directory.
+
+```python
+file.mkdir(path: str) -> bool
+```
+
+Create directory. Returns true if new directory created
+
+```python
+file.mkdirs(path: str) -> bool
+```
+
+Create directories chain. Returns true if new directory created.
+
+## Storing data in a world
+
+When saving pack data in the world, you should use the function:
+
+```python
+pack.data_file(packid: str, filename: str) -> str
+```
+
+Returns data file path like: `world:data/packid/filename`
+and creates missing directories.
+
+If paths other than `data/{packid}/...` are used, data may be lost.
diff --git a/doc/ru/scripting/filesystem.md b/doc/ru/scripting/filesystem.md
index ed350048..20cd3570 100644
--- a/doc/ru/scripting/filesystem.md
+++ b/doc/ru/scripting/filesystem.md
@@ -1,10 +1,12 @@
+# Файловая система и сериализация
+
 ## Библиотека *file*
 
 Библиотека функций для работы с файлами
 
 ```python
 file.resolve(путь: str) -> str
-```  
+```
 
 Функция приводит запись `точка_входа:путь` (например `user:worlds/house1`) к обычному пути. (например `C://Users/user/.voxeng/worlds/house1`)
 
@@ -127,11 +129,10 @@ toml.parse(code: str) -> table
 
 При сохранении данных пака в мире следует использовать функцию  
 ```python
-pack.data_file(packid: str, filename: str) -> str
+pack.data_file(id_пака: str, имя_файла: str) -> str
 ```
 
-Функция возвращает путь к файлу данных по типу: `world:data/packid/filename`
-
+Функция возвращает путь к файлу данных по типу: `world:data/id_пака/имя_файла`
 и создает недостающие директории в пути.
 
 При использовании путей не соответствующим `data/{packid}/...` возможна потеря данных при перезаписи мира.