Clean and Standardize Excel Data Online
Messy spreadsheets are full of trailing spaces, inconsistent capitalization, blank rows, and duplicate entries. Maplesheet cleans all of it in one place — trim whitespace, fix casing, remove blank rows, delete duplicates, and standardize date and number formats across columns.
Everything runs in your browser and downloads back as a clean .xlsx or .csv, so your data never touches a server.
How it works
- Upload your .xlsx or .csv file.
- Choose the cleaning steps you need — trim spaces, fix casing, remove blank rows, deduplicate, standardize formats.
- Preview the cleaned result before you commit.
- Download the tidied spreadsheet, ready to use.