The Spreadsheet folder contains the spreadsheet implementations of this project.
FreeBMA_for_Freelance_Translators_*.*.ods will be supported (natively) in Open/LibreOffice while FreeBMA_for_Freelance_Translators_*.*.xls and xlsx will be supported in both MS-Office and Open/LibreOffice.
Use either of these spreadsheet files if:
1 - You feel comfortable working spreadsheet files only and/or have never used a database before.
OR
2 - You are an MS Access user and wish to build an Access database straight from FreeBMA_for_Freelance_Translators_*.*.xls.
Now, not being a Windows/Microsoft Office/Access user myself, I have not been yet in a position (license-wise at least) to release an MS Access implementation of this project. But you can yourself do so quite easily by doing the following:
This is a graphical procedure that should be straight forward enough for a superuser, not necessarily a programmer. However, if you encounter issues such as the resulting tables are filled with mixed up data, check that you do not use ';' or '#' as delimiters while importing the Excel data (both ';' and '#' signs are already in use within the project's data), and make sure also that the first row of each spreadsheet table will be used by MS Access as table fields. There should be an option for that while doing the import.
Note: There are some reliable programming libraries out there (at least in PHP) that allow being dynamically fed data coming from spreadsheet files, including .ods and xls file formats. But using those would be pointless since an .sql file (namely FreeBMA_for_Freelance_Translators_*.*.sql) containing the whole structure/data of the project is already available from the Open-LibreOffice Base for MySQL folder. That's unless you wish to build an application that for one reason or another should be populated straight from a spreadsheet file, of course.