Microsoft Excel is a proprietary commercial spreadsheet application written and distributed by Microsoft for Microsoft Windows and Mac OS X. It features calculation, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications. wikipedia.org

A data entry clerk, sometimes called a typist, is a member of staff employed to type data into a database using a keyboard. The keyboards used can often have specialist keys and multiple colours to help them in the task and speed up the work. wikipedia.org

Lead generation, or lead gen is a marketing tool used, particularly in internet marketing, to generate consumer interest or inquiry into products or services of a business. wikipedia.org

Pipedrive CRM is a highly popular sales management tool designed to help small businesses master the selling process. It works especially well for businesses where the sales cycle is long and many people are involved.

PDF conversion is the process of converting PDF documents, an ubiquitous format for digital documents, to other formats, such as Microsoft Office formats (Word, Excel, Powerpoint), HTML, and computer graphics formats (GIF, JPEG, PNG).

Data mining is the process of discovering new patterns from large data sets involving methods at the intersection of artificial intelligence, machine learning, statistics and database systems. wikipedia.org

Zoho CRM offers customer relationship management functionality, procurement, inventory, and some accounting functions from the realm of ERP. wikipedia.org