Data Cleanup & Error Checks

Combine monthly Excel files from a folder with Power Query, standardize the columns, and refresh the consolidated table when files are added.

Find mixed data types in an Excel column, identify the records causing errors, and convert the values to one consistent type.

Learn fix all caps names fast in excel with a practical Excel example, clear steps, and a quick verification check.

Learn make status look clean in excel with a practical Excel example, clear steps, and a quick verification check.

Flag duplicate invoice numbers in Excel with conditional formatting and a formula, then review whether each repeat is a true error.

Fill only blank cells in Excel with Go To Special, enter the replacement once, and protect values that are already present.

Find and remove nonprinting characters in Excel data that cause failed lookups, duplicate values, and inconsistent text comparisons.

Fix numbers stored as text in Excel, choose the safest conversion method, and protect identifiers that need leading zeros.

Remove extra spaces and hidden characters from imported Excel text with TRIM and CLEAN, then confirm that lookups and comparisons work.

Standardize mixed Excel dates by separating true dates from text, converting problem values, and applying one reliable display format.