Power BI toolkit
Sheet Recon
Compare two tables from Excel or CSV by key, after cleaning both the same way: DAX column names, dates, numbers and blanks. No Copilot needed.
Clear all entries? This removes every loaded file, the column matches and the results from this page, and puts your cleaning choices back to the defaults. Sheet Recon never saves your files in the browser, so nothing of them is left behind. It can’t be undone.
Entries cleared. Add your files in step 1 to start again, or .
1
Load data
Add one or more files. Source and target can be two files or two sheets of the same workbook.
Drop files here or
.xlsx, .xlsm, .xls, .csv, .tsv
Example data. A Power BI DAX export compared against a warehouse extract. Pick Totals by key in step 2 to see a monthly budget checked against a yearly one. Add your own files and it will be replaced.
2
Clean and match columns
Cleaning applies to both sides before anything is compared. Pick one or more key columns to line rows up.
Column names
Values
Separate with commas. Letter case is ignored.
Dates
Handles Sept 25, 2026 · 25-Sep-2026 · 2026-09-25T00:00 · Excel date cells and serials · 20260925. Tick Date on a column below to clean it.
| Key | Source column | Target column | Date | Example after cleaning | Unpair |
|---|
3
Compare
Rows are paired on the key. Every compared column is checked on the cleaned values.