Does Excel open a Blank screen when you open an existing file? Microsoft Excel, for the most part, tends to work well, but there are times when it buckles and fails to perform even basic tasks. For ...

Excel validation lists avoid blanks and errors with TOCOL(ignore) plus FILTER; the spill range stays stable across worksheets.

What HyperFormula can be used for? HyperFormula doesn't assume any existing user interface, making it a general-purpose library that can be used in various business applications. Here are some ...

Abstract: Although Program Evaluation and Review Technique(PERT) has been applied widely in the planning and control of the project progress, there are some deficiencies, for example, the accuracy of ...