Clean up and summarize data
Add up group averages with two summary steps
Calculate each machine’s average load for each day, then add those averages to get a daily total without counting one machine’s readings repeatedly.
Make spreadsheet work simpler
Match customer lists, find missing values, and combine spreadsheets. See how to solve everyday Excel problems with worked examples in JOIN SHEET.
Clean up and summarize data
Find daily debit and credit differences when overall totals agree
Find dates whose debit and credit totals differ, even when the overall ledger balances. Sum by date, subtract and filter out zero differences.
Append sheets
Combine code lists without repeating codes with different descriptions
Prepare code-only inputs and append them with duplicate removal to get one row per code, regardless of description differences.
Clean up and summarize data
Calculate variance within each group
Join each group's mean back to its observations and summarize squared deviations. Compare population and sample variance, including the one-observation case.
Append sheets
How to combine Excel sheets when the columns are in a different order
Combine monthly sales files without moving their columns first. Match the headers, append the records and put the finished report in the order you need.
Clean up and summarize data
How to look up product codes with case-sensitive matching
Keep AB10 and ab10 as separate product codes and return the correct name for each. Check the matching rule and prevent extra matches caused by ignoring letter case.