Steps to Reproduce

1. import the attached file
2. export the file
3. import the exported file

Current Result

• default column width is 89px in the source file, after it's exported the width becomes 96px
• the impact is: column 103th - 16384th becomes custom width when importing, since their width are different from the default width. Then it produces lots of CSS rules.

Expected Result

the default column width doesn't change after re-import