File Format which contains only value, no formula. e.g. "xlsf"
My idea is to create an own excel filefomat, which contain all spreadsheets and diagram etc. but only with cell values, not with formulas. Before saving, Excel will fill all cells with the actuall values. It's like selecting all sheets, copy, and paste only values.
If you send this file to other people, it doesn't matter if you use one, vba based, formula or formula which are excisting only in an add-in you use. It's like creating a pdf-file, but you've the full excel-support in your file and the files would be much smaller.
I work as an managing accountant in germany and work with some Excel Add-in like SAP BI or Infor Office Add-In. This add-Ins work with own formulas which are only available for people who als use this add-in. Sometimes I send this files before filling all cells with values and so the recipient only see "name#" in the file.