IMC: More than two rows are occupied per feature after exporting features in CSV format.

When exporting all the features with sequence in CSV format and viewing the file with Excel, some feature occupied more than two rows.

A cell of Excel can not contain more than 32,676 characters, then this trouble may be caused by the overflow characters. The troubled feature has more than a million base pairs.

Correction: 32,767 <--- 32,676