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errProof vs fxSolver

A side-by-side look at errProof and fxSolver. For an in-depth review of either product, follow the links below.

errProof

errProof

Office & Productivity

errProof is a data validation and error prevention tool for Microsoft Excel. It helps ensure accurate data entry by defining validation rules, conditional formatting, input masks, and drop downs.

data-validationerror-preventionexcel-addin
fxSolver

fxSolver

Education & Reference

fxSolver is an online tool for solving math equations and calculating formulas. It supports various math functions and can solve equations with multiple variables.

mathequationscalculatorsolverformulas

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