Office Suite - Words, Excel, PowerPoint files Editor

This app supports more than 400 spreadsheet functions that can be used to create formulas that manipulate data, calculate numbers, and generate strings.
Files in the following formats can be viewed and converted to the Sheets format: .xls (if newer than Microsoft Office 95), .xlsx, .xlsm, .xlt, .xltx, .xltm .ods, .csv, .tsv, .txt and .tab