XLSX to RTF converter

The XLSX file format is a modern extension of the classic XLS file format. It is a Microsoft Excel-sponsored file type designed for storing and exchanging tabular data. An XLSX extension is a collection of multiple binary files stored in an Open Packaging Convention (OPC) container and compressed into one single file.

Due to its compatibility with multiple Office programs and its open XML structure, users can open and edit data stored in an XLSX file easily. Additionally, XLSX files support many features that are not present in the classic XLS file type, such as filters, custom properties, and more robust ways to present data with charts or graphs.

RTF (Rich Text Format) files are text documents formatted using special coding. This allows them to retain their appearance (bold, italic, fonts, colors, images, etc.) regardless of the system or software it's viewed on. RTF files can be opened with almost any word processor.

RTF files can be used for activities like preparing user manuals and newsletters. The files can contain text along with some graphics, tables and tabular data. It has become a very popular format due to its ability to retain document formatting and compatibility between different versions of computer and software systems.