Generate ODS file using C# .NetCore website

Generate ODS file using C# .NetCore website Overview: A .ods spreadsheet the Open Document format. It is a zip file that contains a [login to view URL] file which contains the data for the worksheet. I would a method of updating the [login to view URL] (replace a tag in the worksheet) and then zip the component files to create a .ods file on the fly. The result will be to server .ods files on a website without saving the files to disk. Preparation: - Create a worksheet with a tag [[NAME]] in the worksheet. - Save as ODS format. - rename .ods to .zip. - Unzip the file. save the individual files and subfolders on the web server to be read by the process below. Folder on web server: /worksheet_files Process: - Web request comes for an ODS file. example: [login to view URL] - .Net Core website (written in C#) opens /worksheet_files/[login to view URL] into a string buffer IN MEMORY. - IN MEMORY: It then replaces the string "[[NAME]]" with the name parameter from the URL (in this example "Joe Smith") - IN MEMORY: It then creates a zip file that contains all of the files from /worksheet_files but instead of including [login to view URL] from the disk it adds the [login to view URL] that is in the string buffer and has the string replacement. - The final zip file is passed back to the web request as a .ods file titled "[login to view URL]" - Note: the zip file/ods file is never saved to disk User Experience: Enter [login to view URL] in the browser. Download/save the ODS file to local computer Open the ODS file and see the name "Joe Smith" where "[[NAME]]" used to be NOTE: May only use .Net Core standard libraries (no third party libraries) NOTE: Do NOT want to generate a .ods file from scratch... this is designed to make minor adjustments to an existing .ods file NOTE: All work/code will be owned by our company once project is complete and paid. Timeframe: would like this project to be complete within 1 week or sooner.