Hello. I`am just starting Freelancing, so the price is low, but the task is seems easy for me:
1) Import from xlsx/xsl can be done through OLE or external component.
2) Import from csv can be done through parsing file directly or Excel OLE/component
3) For web connections i`am usually use Synapse, but any other component can be used, if needed
4) Bugfixing is not my theme, but in such easy application this is should not be a problem.