=GAUCHE(A2;EQUIV(VRAI;CODE((STXT(A2;LIGNE(INDIRECT("1:"&
NBCAR(A2)));1)))>96;0)-3)
=STXT(A2;EQUIV(VRAI;CODE((STXT(A2;LIGNE(INDIRECT("1:"&
NBCAR(A2)));1)))>96;0)-1;EQUIV(VRAI;ESTNUM(STXT(A2;LIGNE(INDIRECT("1:"&
NBCAR(A2)));1)*1);0)-EQUIV(VRAI;CODE((STXT(A2;LIGNE(INDIRECT("1:"&
NBCAR(A2)));1)))>96;0)-3)
=STXT(A2;CHERCHE("IPP";A2)+4;7)
=STXT(A2;EQUIV(VRAI;ESTNUM(STXT(A2;LIGNE(INDIRECT("1:"&
NBCAR(A2)));1)*1);0);10)