
Business Functions is a function library for Microsoft Excel designed to make business plans, budgets, structured financings and cashflows. It's based on the principle that using a purpose-built function in a cell is more transparent, reliable, flexible and accurate than an overly long Excel formula.
This principle has been extended to a comprehensive projections functions that project cashflows and accruals with a high degree of daycount accuracy. Up to 500 functions in C++ do the dirty work of projecting costs and revenues, coping with time periods, growth etc.
Business Functions Basic Features
Industrial strength function performance from optimised C++ code.

Rapid access Function Selector and searcheable Function Finder

Debug and error Trace facility. No more unexplained #NUM! errors.

Free Basic edition acts as runtime for models developed using functions from the pay editions.

Comprehensive function set for business planners and analysts.

Accurate and advanced date arithmetic, offering unlimited daycount options.

Functions either return accruals or cash (ProjMode variable).

Choice whether to use projections functions one-per-cell or as array functions.

Change the timebase of your entire budget by changing just one variable (Base)

Spreadsheet examples of each function as well as pre-prepared templates available online
(example).
3 tutorials.

Many productive
utilities .

Callable from VBA, so you can use them in your own custom functions and macros.

Common-sense function names eg 'MkPmts','NextDateSeq,'AnnGrow','FStepRent', 'Loan','Mortgage'.