The Code Project is an exciting site with impressive teaching and professional exchange capabilities. I have learned much from it and also decided to submit my contribution. Occasionally I was involved in a project to check experimental data for consistency. The data were collected in several binary files, which also contain \"holes\", i.e. missing data segments. The main idea to simplify the fast check report was to embed this report inside the progress control.-The Code Project is an exciting site with im pressive teaching and professional exchange c apabilities. I have learned much from it and als o decided to submit my contribution. Occasiona lly I was involved in a project to check experime ntal data for consistency. The data were collec ted in several binary files, which also contain "holes" ie missing data segments. The main idea to sim plify the fast check report was to embed this rep ort inside the progress control.