To explain my non-nonsensical reply, your question is far too open and vague to give any constructive, meaningful reply to.
What is your spreadsheet for? Is your spreadsheet for:
- Tracking cash flows for a company to help prepare regulatory reporting, or valuation purposes, e.g. to invest into or propose as a takeover target? In this case you will need to know financial information for that firm over a given time period, assumed future growth rates, tax assumptions and guesstimates of discount rates
- Storing test grades for a class of students?
The student names, the scores
- Used to create charts or graphs with, for purposes only known to you?
What type of data you are wishing to graph, where it originates from, it's accuracy
- Etc etc
etc etc
You'll find the more precise a question you ask on this board, the more helpful (and usually faster a reply) you'll get