Codenamed Journey developed Excel is a software package effective at enhancing and making spreadsheets which are preserved having a.xls file extension. For Example, having a spreadsheet you can develop your personal payroll, balance your check-book, arrange a lot of information in much more, and an easy-to read format.

From its first version Excel supported end user programming of macros (automation of repetitive tasks) and user defined functions (extension of Excel’s built-in function library). In early versions of Excel these programs were written in a macro language whose statements had formula syntax and resided in the cells of special purpose macro sheets (stored with file extension .XLM in Windows.).

XLM was the default macro language for Excel through Excel 4.0.[20] Beginning with version 5.0 Excel recorded macros in VBA by default but with version 5.0 XLM recording was still allowed as an option. After version 5.0 that option was discontinued. All versions of Excel, including Excel 2010 are capable of running an XLM macro, though Microsoft discourages their use.

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Alexander Graham Bell (March 3, 1847 – August 2, 1922) was a Scottish-born scientist, inventor, engineer, and innovator who is credited with patenting the first practical telephone.