The Internal USFile Component

The internal USFile component provides basic file-IO functionality. Text files can be kept open for a period longer than a single statement, making it possible to write to the file using multiple write statements. It is also possible to append the output of an XML.Export statement to a file which is opened with this USFile component.

The USFile component provides methods to:

·	Open a text file for reading, writing, or appending.

·	Write text or binary data to a file.

·	Read lines or a complete binary or text file.

·	Check if the end of a file has been reached when reading lines.

·	Close a file.

The supported methods are described in the related topics listed below, with examples.