How to convert an XLS file to CSV Let’s say you have the file clients.xlsx and you need it converted to clients.csv to be then uploaded as a client list in your new CRM tool.

The Java input/output (I/O) facilities provide a simple, standardized API for reading and writing character and byte data from various data sources. This article explores the I/O classes ...

How to Read an XLS File Without Excel. XLS files are spreadsheet files created by Microsoft Office Excel. An Excel spreadsheet can contain anything from images and plain text to graphs and tables ...