I have a question, (Sorry for my english)

I make a lot off mailmerge in Excel and Word together ,with one letter
hundreds at de same time ,but I want to make a mailmerge with more than one
letter , example

Policynumber 1 , letter 1
policynumber 2 , letter 2
policynumber 3 , letter 1
policynumber 4 , letter 4

up to 6 or 8 letters and 600 policynumbers sometimes 100 for letter 1
sometimes 10 letter 2

of corse I can use Sort on de different letters , and then vlookup but dat
is a lot of work , for say 10 letters of letter 4

I was thinking to use somekind off code that trikkert the letter , maybe
macro to start

we don't have MS Acces at our systems