Merge Spreadsheets

Merge Spreadsheets is a web app spreadsheet tool that easily merges together excel files. You can upload files with these extensions: .xls, .xlt, .xlm, .xlsx, .xlsm, .xltx, .xltm, .xlsb, .csv, .txt and under the Basic plan, you can upload files that total less than 5 MB. Meanwhile, on the Pro plan there is no size limit. Furthermore, you can edit column names and file options to ensure everything is organized. Lastly, the merged file can be downloaded as an .xlsx file.