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I’m an independent IT consultant and entrepreneur in the Internet and software business. I’m interested in design, enterprise applications, web apps and SaaS products. I design and develop business solutions and applications. I help companies in terms of software quality and knowledge transfer, e.g. with Angular and Spring Boot.

PivotHelper: Generate Pivot Tables and Pivot Charts from CSV and Microsoft Excel Spreadsheet Files

Somewhat recently, I regularly had to generate Pivot tables and corresponding charts from datasets provided as both CSV and Microsoft Excel files. Now, with its data source and pivot table tools Microsoft Excel usually lends itself to that sort of task. However, to completely automate this task VBA macros are required. Those too work quite nicely if one overcomes the initial aversion of working with Microsoft's not exactly well-designed and usable IDE for VBA macros (Excel's own macro recording feature is quite ...

Dan Bricklin – Inventor of the Electronic Spreadsheet

Today startup entrepreneurs are celebrated for disrupting industries and changing the world. Marc Andreessen is famously quoted with the statement "Software is eating the world!". Back in the days when software was nothing but a nascent industry, Dan Bricklin both changed the world with software, disrupted not one industry but several at the same time and in fact almost single-handedly created the industry of small business software. His name nowadays isn't exactly well known as is the software he created. The new ...

Sunday March 19th, 2017 by Bjoern in Design, Software

Exporting table data in web applications as CSV or Excel files

In business applications being able to export data to Microsoft Excel is a very common requirement. In most business environments Excel is the go-to tool for business analytics and quick-and-easy data processing. Hence, being able to communicate with Excel is an essential feature for most kinds of business software. The usual approach for meeting that requirement is generating a CSV file on the server. However, while simple this approach can come with a few downsides: While CSV is a useful, accessible plain text ...

Sunday January 29th, 2017 by Bjoern in Software, Web Applications

Airtable – A true spreadsheet / database hybrid?

Lots of the software of the world is written in Microsoft's Excel. A spreadsheet environment lends itself particularly well to addressing everyday computing problems. Compiling tabular data, creating connections between particular pieces of that data, condensing and aggregating over a dataset's values. These are common tasks a spreadsheet solves very well with no need for complex database or application server software. A spreadsheet is a flexible tool that provides simple, responsive and instant feedback to data input and algorithm changes. However flexible, ...

Sunday November 9th, 2014 by Bjoern in Software, Web Applications

Self Licking Ice Cream Cones

Chris Granger of LightTable fame has posted an insightful article on how better programming tools might come about. He argues that 'programming should be about solving problems' and that ideally 'programming is our way of encoding thought such that the computer can help us with it' but along the way we - as programmers - somehow lost these notions and in our daily work we predominantly deal with marginal problems, problems which are incidental to the problem we were trying to solve ...

Sunday March 30th, 2014 by Bjoern in Software

The World Runs On Excel

There's been a lot of talk lately about the importance of Excel and that Excel is everywhere. I'd even go as far as saying that most of the world in one way or another runs on Excel. Excel in my opinion is the best piece of software Microsoft has made so far (other people seem to agree with me, by the way). While Microsoft didn't invent the spreadsheet - that credit goes to VisiCalc and IBM with Lotus 1-2-3 - they were ...

Saturday February 16th, 2013 by Bjoern in Enterprise Software, Software

Björn Wilmsmann