Stop Excel errors by using these 8 key symbols, like ' to keep leading zeros and ~ to search for literal * or ? characters in data.

They may look harmless, but they're certainly capable of turning your spreadsheets into traffic jams.

Replace confusing cell references with global constants, local variables, and reusable custom functions.

This Google Sheets Advanced Tutorial explains IF, VLOOKUP, INDEX MATCH, and pivot tables, plus macros and Apps Script for ...

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