Category Archives: Excel

FastExcel Version 4 – with Introductory Offer

Posted on February 5, 2020 by

After several man-years of development and a lot of beta testing FastExcel Version 4 has finally hit general availability! FastExcel V4 is a major rewrite of FastExcel V3 and provides many of the things you have been asking for: Support … Continue reading →

Posted in arrays, Calculation, Debug formulas, Dynamic Arrays, Excel, Lookups, Memory, UDF, VBA | Leave a comment

CheckDA: Compatibility of Office 365 Dynamic Array Formulas

Posted on May 20, 2019 by

Office 365 Excel Dynamic Arrays are great, but: What happens when you create a workbook with Dynamic Array  Excel (Excel DA) and send it to someone who does not have Excel DA? My free CheckDA tool allows you to check … Continue reading →

Posted in arrays, Dynamic Arrays, Excel, Uncategorized, VBA | Tagged | 14 Comments

Develop Excel Conference

Posted on July 30, 2018 by

The Develop Excel conference will take place in London on Thursday October the 18th 2018. It will be held at the Microsoft Reactor (70 Wilson Street London EC2A 2DB). Are you responsible for building Excel based Addins and Solutions? Develop … Continue reading →

Posted in .NET, arrays, Excel, JS-API, UDF, VBA, XLL | 2 Comments

Strategies for getting the last row in Excel with VBA

Posted on September 1, 2017 by

Using VBA to get the last row in Excel can be a surprisingly complex task. This post will explore some of the different strategies you can use. The first thing to do is to decide what you mean by “The … Continue reading →

Posted in Excel, Formatting, VBA | Tagged , | 9 Comments

Excel JavaScript API Part 5: The large numbers bug

Posted on April 5, 2017 by

There is currently (JavaScript Excel API set 1.4) a rather nasty bug when writing large integer numbers (anything larger than int32) back to a range. 30 January 2018 – API set 1.7 – this bug is still there! The JS … Continue reading →

Posted in Excel, JS-API | Tagged , | 4 Comments

Excel JavaScript API Part 4: The shallow copy problem

Posted on April 5, 2017 by

I was trying to read the values from a Range and then write modified versions of the values to two different ranges. Should be straightforward: Well this does not work: both B4 and B6 have 0.91 added to them: wrong … Continue reading →

Posted in arrays, Excel, JS-API | Tagged , | 1 Comment