Current release allows reading and writing from/to XLSX format files without any automation. Support for cell import/export with cell formatting and formulas. Cell formatting includes borders, font (size, name, bold, italic, underline, etc), foreground color, and background color, number formatting, and in-line text formatting. Multiple sheet support.
A PDF file is included for the documentation on the methods and properties. See the Demo() method for example of method calls - this creates a sample XLSX spreadsheet which shows most of the features. A PRG is included that calls the Demo() method. Other PRGs are included to show other features.
Note: Release 17 changes a number of the method parameters and return values; so please see the Release Notes and Documentation.