Frankly, Excel is not a data entry tool.
It's OK but when it comes to data entry we create apps or web pages for that. It really does not matter if you use SQL or not but you do want a database. Use one you know. My first MySQL app took about 3 months to hammer out till we put it into production.
Once in a while you encounter folk that need it by the weekend. That is, they don't want to invest the time and practice to get their new programming skills. These folks are ripe to be plucked clean by those that sell click here to create you new app apps.