Conversion from strange JMP-IN format to normal coefficients

Form given in JMP-IN:

A + Bx + C(x - 25)²

A + Bx + C(x² - 50x + 625)

A + Bx + Cx² - 50Cx + 625C

Normal second-order format:

(A + 625C) + (B - 50C)x + cx²

backup data file (Excel format)