The .7z extension indicates the file was created using the 7-Zip archiver , which offers several advantages:
: It could simply be a user-created archive of a folder named "TOD," which might stand for "Trans-Operative Data," "Top of Day," or other internal project names. About the .7z Format TOD.7z
While there is no single established "TOD.7z" file recognized by general technical documentation, a file with this name is typically a 7z compressed archive containing data related to "TOD," which may refer to specific software or data formats. Common Contexts for TOD Files " "Top of Day