Problem importing data from xls file to matlab

Hi,

I'm having trouble importing data from an xls file containing numbers and text.

My excel sheet has 15000 rows and 8 columns (numbers, text, date) without a lot of missing values.

The problem is that whene i import my data into matlab using xlsread, the 700 first rows from my xls file are imported correctly but the 14300 other rows are full of missing values (not missing in excel).

Do you have an explanation and a solution please?

Thanks!