Modelling

There are a number of different modelling standards.
link - wallstreetprep.com/knowledge/financial-modeling-best-practices-and-conventions/
link - ssrb.org/files/documents/BPM-Standards%20Comparison.pdf
link - operisanalysiskit.com/

BPM

Established in 2002
Best Practice Modelling
link - ssrb.org
link - modano.com

SMART

Established in 2005
link - financialmodelling.mazars.com
Corality Financial Modelling

FAST

Established in 2011
link - fast-standard.org
link - f1f9.com
link - gridlines.com