How would you read data from a file in Lua? Provide an example that demonstrates the process of reading a text file and printing its contents.

In Lua, reading data from a file involves a few steps: opening the file, reading its contents, and closing the file. Lua provides the "io" library, which contains functions for file input/output operations. To read data from a file, you can use the `io.open()` function to open the file, and then use the `file:read()` function to read its contents. Here's an example that demonstrates the process of reading a text file and printing its contents: ``` lua`-- Open the file in read mode local file = io.open("data.txt", "r") -- Check if the file ....