Final Fantasy XV has more than one plausible-looking PC save location, which makes a full-folder backup more reliable than hunting for a single file. On Steam, cloud behavior can route active saves through Steam userdata even though a Documents savestorage tree also exists. The numbered slot folders are significant: moving the contents while changing the slot number is not equivalent to restoring the original directory. SaveEditor therefore records both the storefront root and the slot structure and recommends testing a copied slot only after the original folder is preserved.
Identify the exact save you intend to edit
The researched Final Fantasy XV Windows Edition PC save location is Windows: Steam: %USERPROFILE%DocumentsMy GamesFINAL FANTASY XVSteam<user-id>savestorage and <Steam-folder>userdata<user-id>637650remote ; EA app: %USERPROFILE%DocumentsMy GamesFINAL FANTASY XVOriginsavestorage ; Microsoft Store: %LOCALAPPDATA%Packages39EA002F.FINALFANTASYXVforPC_n746a19ndrrjgSystemAppDatawgs. Known file/folder pattern: slotNUM folders; eight manual slots and two autosave slots are documented for the PC release.. Storefront context: Steam, EA app, Microsoft Store. Steam Cloud can make the Steam userdata remote folder authoritative even offline. EA/Origin and Microsoft Store use separate storage conventions. Do not edit a similarly named file from a different profile, edition, or cloud cache.
Make an untouched backup first
Back up the entire savestorage or active remote folder, not only one payload file. Keep each slotNUM directory under its original number so previews and related data remain grouped. Keep that copy outside the live save directory and do not overwrite it with later experiments. Cloud context: Steam Cloud, EA cloud, and Xbox Cloud are documented; Xbox/PC cross-save applies to the Microsoft ecosystem. If a launcher can synchronize the save, prevent it from silently replacing either the original or edited copy while testing.
Understand the format boundary
Final Fantasy XV organizes saves by numbered slot folders. Steam may use both Documents savestorage and its userdata remote location when cloud saves are enabled. The slot number must remain aligned when importing a folder. File-extension context: No single extension is sufficient to identify every relevant save record. Compatibility note: A folder copied into the wrong slot number may not load as intended. Microsoft Store WGS is not the same layout as Steam or EA Documents storage, so cross-store migration should be handled explicitly. These facts help identify the save but do not automatically reveal every field, checksum, encryption rule, or version-specific structure inside it.
Use only a Tool whose claim matches the file
Generic viewers and diff tools can inspect bytes without claiming game-specific semantics. A game-specific editor should be used only when its Tool page explicitly lists Final Fantasy XV Windows Edition, a matching supported version/container, and a Verified operational runtime. A planned URL or Game Hub is not evidence that an editor exists.
Test the edited copy safely
Write to a new output file when the Tool supports it, keep the original backup, restore the edited copy into the correct profile/storefront location, and launch the game only after the file operation finishes. If the game rejects it, If an imported slot does not appear, verify the slot number, active storefront, and whether Steam Cloud replaced the local copy. Screenshot previews can remain stale until the game saves that slot again. Return to the untouched backup before trying another change.
Verification context: Reviewed against current PCGamingWiki Final Fantasy XV save-location, slot-folder, cloud, and transfer notes.