CMMI is a Process Model Framework for process-improvement developed by Software Engineering Institute (SEI), Carnegie Mellon University (CMU), Pittsburgh, USA. CMMI, standing for Capability Maturity Model Integration, is a structured and systematic collection of best practices for process-improvement. The CMMI process model framework is currently available in three constellations â CMMI for Development, CMMI for Services, and CMMI for Acquisition.
Updated March 10, 2017. A file with the XLSB file extension is an Excel Binary Workbook file. They store information in binary format instead of XML like with most other Excel files (like XLSX). Since XLSB files are binary, they can be read from and written to much faster, making them extremely useful for very large spreadsheets.
A workbook is an Excel file that contains one or more worksheets. Each of the workbook&#039;s worksheets are in separate tabs on the bottom of the Excel window. By default, a new Excel workbook will contain three worksheets. key concept of Microsoft Excel is the difference between a worksheet and a workbook. computer image by fotografiche.eu from Fotolia.com. Microsoft Excel is a powerful small business tool that allows you to organize and analyze large amounts of data quickly and efficiently.