The document contains code snippets showing the use of variables, operators, control flow statements like if-else and switch-case, and input/output statements like printf and scanf in the C programming language. It defines variables, performs basic math operations on variables, and prints the results to the screen. Control structures like if/else and switch/case are used to check conditions and print corresponding outputs. Input is taken using scanf and output displayed with printf.
This document provides information about Microsoft Excel including basic concepts like workbooks, sheets, cells, rows and columns. It describes keyboard shortcuts for navigating within a worksheet like Ctrl + Home to go to the first cell or PgUp/PgDown to move between pages. File operations like saving, opening, closing and creating new workbooks are also outlined. Common file types for spreadsheets like XLS, CSV and TXT are listed. The document concludes by describing the main components of the Excel interface such as the menu bar, tool bar, sheet tabs and worksheet.
