Jonsafi Why not use TStringsData instead of TStringList? I believe it does the OnGetCell for you automatically... you just need to read your CSV data into the TStringsData[Col,Row] as usual for stringgrids. Also because it is a "matrix" structure already, you can do various manipulation like missing...

Thanks Jonsafi! I am switching to TeeGrid due to performance. I tried loading 284K lines and 35 columns dataset (standard credit card fraud dataset for machine learning). The performance is like 2 secs load for TeeGrid vs 10s of seconds for standard TStringGrid and others... I used the excellent CSV...

I am using TeeGrid, and TStringsData. I would like to read a CSV file. Is there a function or procedure in teeGrid or TStringsData that provides this? I have scanned through the documentation and source code and did not see any. Most commercial grids like TMS's TAdvStringGrid have a LoadFromCSV func...