excel macro for importing data from excel sheets inside a folder into a single sheet

Hi, I have the following requirements for an excel macro: There is a folder with many excel files containing data, and I want to merge these files. The data within the files have a similar structure: a fixed number of columns (to be defined manually within the macro) and a variable number of rows. All files have the same header (first row) which shall be copied only once. So, I would like to have an excel file with macro code in which I want to define the folder (not all the single file names!) comprising the files to be “merged”, I want to define the number of relevant columns, and the macro shall merge the data. Merging means opening each individual file, copy the data, and paste it to the file comprising the macro. If e.g. the first file comprises data in the cells A2: P30 (A1:P1 would be the header that shall not be merged), the data from the cells A2:P30 shall be copied into the excel file with the macro, being pasted into cells A2:P30. Then the original data file shall be closed again, the next file from the folder shall be opened (maybe you do the opening in alphabetical order), data shall be copied (e.g. in this case A2: P6), and pasted to the excel file with the macro, specifically into cells A31:P35, etc. These cell ranges are examples only! Please note that some files may comprise more than 1k lines The macro should work for both xls and xlsx I added two files to be processed, and a file comprising merged data. Final remark: I finally need an invoice. As invoices don’t comprise amounts paid via milestones, I don’t work with milestones. If you insist on a milestone, you should look for another project.