xlsgen, native Excel generator

xlsgen 5.0.0.75 : Additional CSV import option

ARsT design — Sun, 1 Nov 2026 16:25:20 GMT

Build 5.0.0.75 of xlsgen adds another CSV import option, that is, an option that can be used whenever importing data with the CSV file format.

This new option is called TextDelimiter and allows to tell xlsgen that enclosing fields in quotes is using double quotes ("), single quotes (') or none of that. The usage case for this is when you know in advance the data does not use double quotes to enclose data fields. Enclosing data fields can be used to have field separator characters inside data without causing import problems.

xlsgen 5.0.0.74 : Security update

ARsT design — Sat, 31 Oct 2026 11:19:16 GMT

Build 5.0.0.74 of xlsgen is a security update for a dependency of xlsgen called libPNG (r/w pictures with PNG file format).

libpng 1.6.58 ==> 1.6.59

xlsgen 5.0.0.73 : Fix for large strings in cells

ARsT design — Thu, 29 Oct 2026 16:16:36 GMT

Build 5.0.0.73 of xlsgen fixes a problem related to strings that can't be inserted in cells because they are reaching the internal limit. Cells have a 32 KB char limit each one. To make sure crossing the limit does not crash xlsgen or the created Excel files, xlsgen limits strings to 32 KB in each cell.

xlsgen 5.0.0.72 : Fix for conditional formattings

ARsT design — Wed, 23 Sep 2026 16:48:39 GMT

Build 5.0.0.72 of xlsgen fixes a problem related to handling existing conditional formattings with insert/delete row/col manipulations.

xlsgen 5.0.0.71 : Fix for tables

ARsT design — Fri, 18 Sep 2026 11:32:54 GMT

Build 5.0.0.71 of xlsgen fixes how table column names containing special characters are parsed, so they are parsed correctly and written back correctly as well.

xlsgen 5.0.0.70 : Metadata in sheet duplicate scenarios

ARsT design — Thu, 13 Aug 2026 07:38:46 GMT

Build 5.0.0.70 of xlsgen ensures that sheet-level metadata on cells get copied on sheet duplicate scenarios. Metadata is used by Excel for dynamic formula tagging, for instance.

xlsgen 5.0.0.69 : Improved CELL() function

ARsT design — Sun, 9 Aug 2026 11:21:47 GMT

Build 5.0.0.69 of xlsgen improves the CELL() function. It implements a number of the following parameter commands including "address", "col", "contents", "filename", "protect", "row", "sheet", "type", "width" and "formula".

This build also fixes a problem related to duplicating some of Excel extended functions across sheet tabs.

xlsgen 5.0.0.68 : Fix pack for pivot tables (II)

ARsT design — Thu, 30 Jul 2026 16:37:00 GMT

Build 5.0.0.68 of xlsgen continues what was built with xlsgen 5.0.0.67 (avoiding the #SPILL! error message in pivot tables) and now includes XLS files as well.

xlsgen 5.0.0.67 : Fix pack for pivot tables

ARsT design — Mon, 27 Jul 2026 17:23:45 GMT

Build 5.0.0.67 of xlsgen is a fix pack for pivot tables.

It has the following :

- additional integrity check meant to avoid the #SPILL! error message introduced in recent Excel versions in conjunction to pivot tables.

- improved writing of pivot tables in XLSX and XLSB files meant to avoid the #SPILL! error message in pivot tables

- improved writing of pivot tables in XLS, XLSX and XLSB files to add pivot drop downs

xlsgen 5.0.0.66 : Security update

ARsT design — Fri, 8 May 2026 23:54:17 GMT

Build 5.0.0.66 of xlsgen updates the security level of two library dependencies :

- libPNG 1.6.56 ==> 1.6.58 (used for r/w PNG pictures)
- libWEBP 1.5.0 ==> 1.6.0 (used for r/w WEBP pictures)