After looking carefully into his works, I found out than he put headers for 4 different reports. I think the best will be to split those fields into 3 new different tables and used specific keys on each new tables.
reports:
1- instruments list (only one document, weekly issued)
2- instruments datasheets (each datasheet will be generated in excel and will have a specific DocNo)
3- process conditions (linked to the instruments datasheets, only tracking import date from cells)
4- documents tracker (to track 1 to 3 above)