Learn the difference between Excel COUNT and COUNTA, plus TEXTBEFORE and TEXTAFTER tricks, so you clean text and totals with confidence.

Multiple sclerosis is an autoimmune disease in which immune cells attack and destroy the protective myelin sheaths that surround nerve fibres, leading to neurological disturbances. Lymph node-like ...

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Micah Castelo is a web editor for EdTech: Focus on K-12. Her experience includes education and community news coverage for the Syracuse Post-Standard and international news reporting for the Pulitzer ...