ocr: - Budget.xls - File Investigator Properties Details Background Preview Setup MS ExcelWorksheet/Add-in/Templ File extension(s): XLS XLA XLT XLB Platform(s): BM PC Compatible, MS Windows 3.x, MS Windows 35/98/NT Storage: Binary Lontent: Spreadsheet MIME: application/*-excel Uniginator: Microsoft Corporation Notes: Aspreadsheet tormat that uses Microsolt's - - Interchange File Format (BIFF). It IS native - - MS Excel.