You can name your table "my000" but you can't name it "my001". You also can't name it "bab002", "lal0101" or anything similar.
When using macros to create and rename tables I noticed that sometimes it puts underscore at the end of the table name (like myt001) with no valid reason. Excel prompts that a name should not be in conflict with existing name, start with number or include space or not allowed character. The names that I try seem completely correct, by Excel changes them to for instance to "my001_", disrupting other parts of my spreadsheet.
To reproduce: open blank Excel, create an empty table with Insert -> table then try to name it "ba001" or something similar. When trying to do the same with vba, it puts underscore at the end ("ba001_"), having no reason to do this.
I expect vba to give the (supposedly) correct names to ListObjects. Instead it puts underscores at the endings in unexpected situations.