Helpful calculators for Rectification
Firdaria, Zodiacal Releasing and Lot calculators in Excel workbook format
WARNING: Excel spreadsheets have the annoying limitation of not handling any date before January 1, 1900. For horoscopes prior this date, simply add 1000 years to the birthdate and the output will still generate appropriate results.
DISCLAIMER: These are provided on an ‘as-is’ basis. I recommend saving an original and working with a copy; this way, if you accidentally write over some workbook formulas you can start over with a clean copy.
Firdaria
I advocate using Firdaria as a Stage I rectification tool to determine whether the horoscope is diurnal or nocturnal. See the ‘notes’ tab for instructions and comments.
Zodiacal Releasing
ZR can be used in both Stage I and Stage II rectification. This workbook shows releasing from all 12 zodiac signs in vertical columns to facilitate a comparison between possible ZR sequences and a biographical timeline. See the ‘ZR instruction’ tab for details.
Lots
This workbook computes all major lots by Bonatti as well as the seven Hermetic Lots. This is a fairly primitive workbook in design, just follow the directions carefully. The output report presents the seven hermetic lots first, then additional lots organized by the twelve houses.