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There are plenty of good books & video tutorials about, which might help you. But as most of my knowledge has come from posting to sites like this...

You're welcome & thanks for the feedback.

Ok, for E2 try this instead =SUMIFS(Fees[1st program Fees],Fees[[Age from]:[Age from]],"<="&DataEntry[@[Age Today]:[Age Today]],Fees[[Age To...

In your 2nd table on the 1st row make the age from 0 & the age to 25 you can then use this in E2, copied across & down =XLOOKUP(DataEntr...

To filter for something that ends with use it like ="=* - xyproductname"

In T23 you have a space before & after the word March. Remove them & the formula works.