When using the Custom list with Deep Export app, and looking at User stories and Tasks, we are pulling the following columns of data:
When the data exports, it splits the owner name into the next column for some rows. For example:
It seems that this may be an Excel Cell overflow issue. I found this online:
Excel character limits for cells
The total number of characters that a cell can contain is 32,767. A cell can only display 1,024 characters.
Notes from triage:
To fix this - move the Description column to the far right column or remove it completely from the columns on the page.