My Papers

My spreadsheets work on PC and Mac, to the best of my knowledge equally well with either MS Excel or Gnumeric software.
The latter is free software that can be downloaded here.
My spreadsheets work in special iteration mode, which has to be enabled.It is disabled by default to prevent circular references. 
To enable iteration mode in Excel:
Tools - Options - Calculation - Calculation=manual, Iteration=ok, Maximum iterations=1
To enable iteration mode in Gnumeric:
Format - Workbook - Calculation, Recalculation=manual, Iteration=ok, maximum iterations=1
Please do not open any other spreadsheet in parallel with my worksheet. 
You must press F9 on a PC or Command+Shift+F9 on a Mac each time you want to recalculate the cells.
 

Spreadsheets: