New member, long time lurker.
I use a Mac so I was never able to use ProMash or any other brewing software. Over the past year or two I've developed and refined this Excel Spreadsheet to do all my brewing calculations and recipe formulations. I thought I'd share it and see what everyone thinks. If enough people like it I could make some walkthroughs that demonstrate how to use it (I know from experience how difficult it can be to figure out someone else's spreadsheet).
Note: There are macros in the spreadsheet so don't be alarmed by Excel's macro warning. There are three macros, they just reset all the data in the spreadsheet and print the beer summary pages. If you don't like them, just select "Disable Macros" when it opens. I also included an OpenOffice version of the spreadsheet for those who don't have Excel. The macros in the OpenOffice version don't work, I don't know why.
Open office can be downloaded for free from here: http://www.openoffice.org/
Downloads are free, just scroll down and select the "File Factory basic service"
Matt's Brew Builder - Excel version:
Matt's Brew Builder - OpenOffice version:
Feedback is appreciated, let me know what you think of it. I can make directions, improve the spreadsheet, or add new features if enough people like it. At worst, it's a free alternative to brewing software (maybe).