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Tag Archives: Excel
Excel dynamic array cumulative sum
To calculate a 2-D array where each row is the cusum of each row in the source table, it’s possible to use the MMULT function. The matrix multiplication is done with an upper-right triangular array of 1s. That’s fine for … Continue reading
ChatGPT 3.5 Excel script
Everybody seems to want to use AI to create Excel formulas, so here is a way of building an interface to the OpenAI ChatGPT 3.5 model. Leila Gharani has already published a video and the Office Script code to call … Continue reading
Posted in Excel/VBA
Tagged A.I., ChatGPT, Excel, Officescript, openai, scripting, Typescript
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VBA Application methods compatibility in Excel and Access
When working on VBA code that should work in both MSExcel and MSAccess VBA, the different application object methods can be hard to manage. For example, Application.Screenupdating = False is used in Excel but would raise a compile error in … Continue reading
Excel questions at the Financial Modelling Summit 2022
Slugify text We want to slugify text, ie include only characters a-z, 0-9 and “-“, so that it can become part of an URL. So that for example “Why I say ‘Bazinga!” – my #1 Reason for Using =INDEX(MATCH())!!” Becomes … Continue reading
WordXLe: Wordle in Excel
An Excel version of the word game Wordle, with helper sheets. Continue reading
XLTest 1.74 spreadsheet audit addin
I have released an update to my XLTest Excel add-in for spreadsheet auditing, visualisation, and testing. Changes up to version 1.74 (September 2021) Start Session dialog changed to show internal workbook information before opening, and to open in manual calculation … Continue reading
Excel Virtually Global 2021
I am one of the 48 speakers at a 48-hour Excel extravaganza online on Oct 12 and 13. It’s FREE but you are encouraged to make a donation to charity to reflect the value to you of the content you … Continue reading
Posted in Uncategorized
Tagged CSV, Data, Excel, ExcelVirtuallyGlobal, StructuredData, Unicode, VBA
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Event Tracing is three times faster than OutputDebugString
I use the OutputDebugString API in Windows to send debugging messages without the line limitations of the VBA Immediate Window. This is also useful when tracing the causes of crashes which kill the Excel process. I use TraceSpy to capture … Continue reading
Querying Text/CSV files in VBA, method #3: Power Query
The module PowerQueryText.bas contains VBA code to query text/csv/tab delimited files and return tables to worksheets. Continue reading
Hello (the rest of the) World – reading data in other languages
Have you ever opened a text file in Excel and found that the characters looked weird or corrupted? The Wikipedia entry for mojibake says ‘In German, Buchstabensalat (“letter salad”) is a common term for this phenomenon, and in Spanish, deformación … Continue reading
Patrick O'Beirne @ sysmod 