Jun 18, 2019 · How to Write a Letter Asking for an Extension. There are many times in life when you may need to ask for an extension. You may be in college and could use some extra time for a paper, or you may be struggling to complete a work project on... 30(e) Errata Sheets 13 quirements set forth in the Rule are also fol- lowed”) id. at 566-67 (collecting cases). “Substance” Must Mean Something More Than “Form” Or “Mistake”. Courts adopting this approach do not look past the words of the rule itself. What Is The Errata Sheet? At the end of a witness’ deposition, most attorneys tell the witness they have the right to “review” what was written. This is technically incorrect. The witness has the right to amend, correct, or supplement the deposition. This can be done on the Errata Sheet.