Invalid Leading character error

[Bcoley]

I am suddenly plagued with an error that happens when I open the app. The crazy thing is that if I just keep refeshing the app and trying to reload it, eventually it will load…but the errors always have a similar message- [Table] “contains invalid leading character”. Sometimes I can go to the excel table and try empty deleting columns or rows and resave it and it works…but the frequency of this error is happening more and more. I do have almost 3,000 records in one table in this particular spreadsheet. Am I reaching a data capacity issue with Excel?