Outline Data Cleaning Steps

Suggest a sequence of steps using Excel features and/or formulas to clean the following data issues in my spreadsheet:
- Issue 1: [e.g., Remove leading/trailing spaces from text in Column 'Name' (A2:A500)]
- Issue 2: [e.g., Convert text numbers in Column 'Amount' (B2:B500) to actual numbers]
- Issue 3: [e.g., Split full names in Column 'Contact' (C2:C500) into 'First Name' and 'Last Name' columns (D and E)]
- Issue 4: [e.g., Remove duplicate rows based on 'Email' column (F2:F500)]
Provide the specific Excel features (like Text-to-Columns, Remove Duplicates) or formulas (like TRIM, VALUE) to use for each step.