08-11-2019 01:39 PM
08-11-2019 04:40 PM
The maximum number of digits allowed in a single cell is 15 digits
Since I do not see a sample file with your question, may be the situation is you went beyond the allowed number of digits.
A Custom number format may be created to fix the issue or maybe in some cases (Like Credit Card Numbers) we may format the cell as Text, so long as you are not going to use it in performing calculations
by jnolan on June 26, 2020
by Brian Jones (OFFICE) on April 29, 2020