Failed to load the book

General
1

I updated to version 5.1.0, and now the book fails to load.

2

You get an error message?

3

another team member reported that an error message now appears:
TXLBook.ErrorMessage
‘read error: record id can’‘t be 0’

4

The issue was related to loading xls files.
I contacted you separately by email and the problem has been fixed.
It seems that the fix may be included in an upcoming version.
Thank you very much.