87 free tools for Excel and CSV files.Your files are processed in this browser and never sent to a server, so there is nothing to install and no limit on how often you use them.

Convert text to dates in Excel

Rewrite dates written in mixed ways — 2024/4/1, 20240401, 04/01/2024 and Japanese era dates — in one format you choose. Your files are processed inside this browser and never uploaded.

File 1

Choose several files to apply the same fixes to all of them

Drop a file hereChoose file.xlsx / .xls / .ods / .csv, up to 20 MB