To get around the limit of seven nested IF functions in older Excel versions and to make your IF formula more compact and fast, consider using the following approaches instead of multiple IF statements. To test many conditions, use the LOOKUP, VLOOKUP, INDEX/MATCH or CHOOSE functions.
Landslide (Fleetwood Mac song) Landslide is a song written by Stevie Nicks and performed by British-American music group Fleetwood Mac. It was first featured on the band's 1975 eponymous album Fleetwood Mac. Along with Rhiannon, it would be Nicks' first original contribution to the band upon joining.
On New Year's Eve, 1974, called and asked us to join Fleetwood Mac. So it was three months, I still had three more months to go to beat my six month goal that my dad gave me. So that's what Landslide is about. ~Stevie Nicks, VH1 Storytellers, 1998.