This document provides instructions for selecting files and folders in Windows Explorer. It explains that you can select a single file or folder by simply clicking on it. To select multiple consecutive items, click the first one, hold shift, and click the last one. To select non-consecutive items, click the first while holding ctrl, then click each additional selection while continuing to hold ctrl. The document was authored by R.D. Sivakumar and provides his contact information at the top. It concludes by thanking the reader.