From Xojo Documentation
Returns the first n characters in a source string.
|result||String||The first count characters of source.|
|sourceVariable||String||The source string from which to get the characters.|
|count||Integer||The number of characters you wish to get from source.
If count is greater than the number of characters in source, all characters are returned.
The Left function returns characters from the source string starting from the left side (as the name implies).
If you need to read bytes rather than characters, use the MemoryBlock class.
This example returns the first five characters in a string.
String for a complete list of functions.