PTab is a fully functional spreadsheet with the key features of common desktop spreadsheets: Excel & Pocket Excel comatibility, macros, charts, data validation, dropdown boxes, outline etc. It is a compact and powerfull app (one .exe file), it runs even on USB Memory Card! PTab works on Windows NT/2000/XP (not on 95/98/ME). PTab is available for Windows Desktop PC, Windows Mobile Pocket PC, Windows Mobile Smartphone, Windows CE.Net, Handheld PC (HPC) and Palm-Size PC. Main PTab 3.0 features -Export/Import - Microsoft Excel (.xls), Microsoft Pocket Excel (.pxl) files, TXT, CSV, DBF -Charts -Macros -Data validation, dropdown boxes -Group and outline -External references (e.g. [BOOK.XLS]Sheet1!A5) Other PTab 3.0 features -256 sheets x 65536 rows x 256 columns -249 built-in scientific, statistical, financial, date/time, logical, database, text and macro functions -Multiple Undo/Redo -Cut, Copy, Paste, Paste Special, Clear, Fill cells, Insert/Delete Rows/Columns -Set row height and column width, hide/unhide rows and columns, autofit row heights and column widths. -Insert function, Quick sum, Pointing -Format: Number format, Alignment, Font, Size, Color, Background Color, Bold, Italic, Underline, Borders Protection -Zoom -Freeze Titles (row and column freezing) -Formula bar or in place editing -Sort, Go to cell, Find/Replace -Names (define and insert) -Protection -Custom lists (e.g. Monday, Thursday, Wednesday...) -Auto filter -Insert sound or hyperlink (cell reference, Web page or E-mail address) in a cell -Password protection -Goal seek -and more...