NextGen AI Data Solutions Site Map
Browse our public data analytics programs, Excel tutorials, freelancer project guidance, and support resources.
Main pages
Excel tutorial categories
- Formula Problems
- Data Cleaning
- Lookup and Data Matching
- Date and Time
- Reporting and MIS
- PivotTables
- Dashboards
- Conditional Formatting
- Data Validation and Drop-Downs
- Power Query
- Excel Automation and VBA
- Large Data and Performance
- Charts and Visualisation
- Finance and Accounts
- HR and Attendance
- Sales and Marketing
- Inventory and Purchase
Step-by-step Excel tutorials
- Create a Sales and Marketing Funnel Report
- Build a Clear KPI Variance Chart
- Create an Inventory Ageing Report
- Reconcile Bank and Ledger Transactions
- Fix a Slow Excel Workbook
- Automate a Daily MIS Report
- Build a Sales Target vs Achievement Dashboard
- Add One Slicer to Multiple PivotTables
- Refresh a PivotTable Automatically
- Combine 50 Monthly Excel Files with Power Query
- Highlight Duplicate Records
- Create Dependent Drop-Down Lists
- Calculate Overnight Shift Hours
- Calculate Working Days Excluding Sundays and Holidays
- Find Missing IDs Between Two Sheets
- Clean Inconsistent Text and Dates
- SUMIFS Returns an Incorrect Total
- Automatic Payment Ageing Report
- Employee Attendance and Overtime Calculation
- Match Data Between Two Excel Files
- LET Function for Complex Formulas
- Dynamic Arrays with FILTER
- XLOOKUP Beyond VLOOKUP
Freelancer help categories
- Client Feedback and Revisions
- Communication and Approval
- Dashboard and Reporting
- Data Cleaning and Quality
- Data Privacy and Confidentiality
- Excel Version Compatibility
- Final Delivery and Documentation
- Formula and Calculation Errors
- Fraud, Trust, and Ethical Requests
- Original Data Protection
- Ownership and Intellectual Property
- Payment and Commercial Disputes
- Power Query and External Connections
- Requirements and Project Scope
- Secure File Sharing
- Testing and Validation
- VBA and Macro Security
- Workbook Structure
Resolved project scenarios
- Freelancer accidentally overwrites the client’s original workbook
- Sorting one column causes customer records to mismatch
- Client file contains payroll and employee information
- Freelancer wants to use client screenshots in a portfolio
- Client and freelancer are working on different file versions
- Client sends files through unsecured public links
- Client says “clean the workbook” without defining the task
- Client requests a dashboard after ordering data cleaning
- Duplicate records may include valid repeat transactions
- Dates appear in multiple formats
- VLOOKUP returns incorrect values
- Formula works for the freelancer but not the client
- Workbook has dozens of unclear sheets
- Hidden sheets contain important formulas
- Microsoft 365 formulas fail in Excel 2016
- Workbook layout changes on macOS or Excel Online
- Client sends an unknown macro-enabled workbook
- Client expects VBA to run in Excel Online
- Power Query path does not work for the client
- Client cannot refresh because credentials are missing
- Dashboard looks good but totals are incorrect
- Client asks for real-time reporting from a static workbook
- Feedback arrives through email, chat, and calls
- Client repeatedly reopens approved work
- Client delays payment after receiving an unlocked workbook
- Cleaned data does not reconcile with source totals
- Workbook works only with the sample dataset
- Client cannot understand the final workbook
- Final workbook contains temporary sheets and test data
- Client asks for a free sample using the complete real file
- Client assumes ownership of a reusable VBA library
- Freelancer wants to reuse a client-specific dashboard
- Multiple stakeholders provide conflicting instructions
- Client cannot explain the expected result
- Client requests manipulation of financial or attendance records
- Workbook contains suspicious macros or unknown external links