If you see #REF! or #NAME? errors, you may have accidentally deleted a hidden calculation cell. It is often easiest to start with a fresh copy of the GSheet v2.1 template and transfer your data.
Add SpreadsheetApp.flush() after any batch write before a read. gsheet v2.1
The sheet organizes spells by level and allows users to hide specific spell-level rows to reduce clutter. If you see #REF
If you prefer physical copies, the sheet is designed to be printable in landscape orientation with 0.2-inch margins. Troubleshooting Common Issues gsheet v2.1
often recommend it as a "solid" choice for those who want a digital sheet without the "awkwardness" of larger commercial platforms. Learning Curve